| Name | 
              Number of Publications
             | 
              Most Recent Publication
             | 
              Publications by All Authors
             | 
              Concept Score
             | 
              Why?
             | 
|---|
| HIV Infections | 92  | 2025  | 5097  | 6.710  | 
                  Why?
                 | 
| Condoms, Female | 27  | 2022  | 41  | 6.550  | 
                  Why?
                 | 
| Sexual Partners | 38  | 2025  | 215  | 5.010  | 
                  Why?
                 | 
| Sexual Behavior | 35  | 2024  | 320  | 4.740  | 
                  Why?
                 | 
| Health Knowledge, Attitudes, Practice | 28  | 2024  | 262  | 4.420  | 
                  Why?
                 | 
| Contraception | 24  | 2024  | 90  | 4.140  | 
                  Why?
                 | 
| Pre-Exposure Prophylaxis | 19  | 2025  | 196  | 4.010  | 
                  Why?
                 | 
| Family Planning Services | 12  | 2023  | 46  | 4.010  | 
                  Why?
                 | 
| Female | 162  | 2025  | 9103  | 3.900  | 
                  Why?
                 | 
| South Africa | 122  | 2025  | 7596  | 3.420  | 
                  Why?
                 | 
| Humans | 187  | 2025  | 14537  | 3.390  | 
                  Why?
                 | 
| Adult | 109  | 2025  | 5913  | 3.160  | 
                  Why?
                 | 
| Health Personnel | 14  | 2023  | 231  | 3.090  | 
                  Why?
                 | 
| Contraception Behavior | 16  | 2023  | 54  | 3.080  | 
                  Why?
                 | 
| Condoms | 16  | 2024  | 88  | 3.080  | 
                  Why?
                 | 
| Sexually Transmitted Diseases | 23  | 2025  | 103  | 3.070  | 
                  Why?
                 | 
| Reproductive Health Services | 14  | 2024  | 66  | 3.010  | 
                  Why?
                 | 
| Pregnancy Complications, Infectious | 14  | 2025  | 529  | 2.930  | 
                  Why?
                 | 
| Contraceptive Agents, Female | 13  | 2024  | 47  | 2.890  | 
                  Why?
                 | 
| Adolescent | 80  | 2025  | 2985  | 2.810  | 
                  Why?
                 | 
| Young Adult | 73  | 2025  | 2498  | 2.780  | 
                  Why?
                 | 
| Patient Acceptance of Health Care | 20  | 2024  | 256  | 2.630  | 
                  Why?
                 | 
| Tenofovir | 6  | 2025  | 171  | 2.570  | 
                  Why?
                 | 
| Pregnancy | 49  | 2025  | 1862  | 2.570  | 
                  Why?
                 | 
| Anti-HIV Agents | 17  | 2025  | 1324  | 2.550  | 
                  Why?
                 | 
| Medication Adherence | 8  | 2025  | 151  | 2.330  | 
                  Why?
                 | 
| Male | 78  | 2025  | 6754  | 2.240  | 
                  Why?
                 | 
| Fertilization | 8  | 2024  | 22  | 2.080  | 
                  Why?
                 | 
| Students | 4  | 2020  | 50  | 1.960  | 
                  Why?
                 | 
| Safe Sex | 18  | 2024  | 68  | 1.950  | 
                  Why?
                 | 
| Risk-Taking | 14  | 2020  | 121  | 1.890  | 
                  Why?
                 | 
| Reproductive Health | 9  | 2024  | 51  | 1.840  | 
                  Why?
                 | 
| Infectious Disease Transmission, Vertical | 7  | 2020  | 472  | 1.840  | 
                  Why?
                 | 
| Medroxyprogesterone Acetate | 15  | 2024  | 44  | 1.770  | 
                  Why?
                 | 
| HIV | 6  | 2020  | 380  | 1.730  | 
                  Why?
                 | 
| Public Sector | 5  | 2023  | 82  | 1.670  | 
                  Why?
                 | 
| Community Participation | 4  | 2019  | 42  | 1.450  | 
                  Why?
                 | 
| Counseling | 10  | 2023  | 143  | 1.370  | 
                  Why?
                 | 
| Intrauterine Devices, Copper | 4  | 2024  | 20  | 1.360  | 
                  Why?
                 | 
| Qualitative Research | 17  | 2025  | 321  | 1.360  | 
                  Why?
                 | 
| Chlamydia Infections | 6  | 2023  | 17  | 1.300  | 
                  Why?
                 | 
| Middle Aged | 34  | 2024  | 3601  | 1.230  | 
                  Why?
                 | 
| Focus Groups | 19  | 2024  | 196  | 1.180  | 
                  Why?
                 | 
| Norethindrone | 11  | 2024  | 26  | 1.150  | 
                  Why?
                 | 
| Sex Counseling | 4  | 2016  | 9  | 1.140  | 
                  Why?
                 | 
| Intention | 4  | 2021  | 23  | 1.140  | 
                  Why?
                 | 
| Attitude of Health Personnel | 3  | 2018  | 106  | 1.100  | 
                  Why?
                 | 
| Pregnancy, Unplanned | 5  | 2021  | 19  | 1.090  | 
                  Why?
                 | 
| Gonorrhea | 5  | 2020  | 20  | 1.090  | 
                  Why?
                 | 
| Genitalia, Female | 2  | 2020  | 17  | 1.020  | 
                  Why?
                 | 
| Delivery of Health Care, Integrated | 3  | 2018  | 33  | 0.980  | 
                  Why?
                 | 
| Professional-Patient Relations | 2  | 2015  | 14  | 0.950  | 
                  Why?
                 | 
| Menstrual Hygiene Products | 3  | 2020  | 8  | 0.930  | 
                  Why?
                 | 
| Postpartum Period | 4  | 2023  | 85  | 0.930  | 
                  Why?
                 | 
| Cross-Over Studies | 16  | 2022  | 40  | 0.910  | 
                  Why?
                 | 
| Social Support | 4  | 2020  | 77  | 0.910  | 
                  Why?
                 | 
| Interviews as Topic | 15  | 2024  | 203  | 0.910  | 
                  Why?
                 | 
| Health Services Accessibility | 7  | 2024  | 280  | 0.880  | 
                  Why?
                 | 
| Choice Behavior | 4  | 2021  | 16  | 0.860  | 
                  Why?
                 | 
| Hygiene | 3  | 2020  | 23  | 0.850  | 
                  Why?
                 | 
| Men | 3  | 2021  | 15  | 0.850  | 
                  Why?
                 | 
| Universities | 4  | 2020  | 34  | 0.840  | 
                  Why?
                 | 
| Drug Users | 1  | 2023  | 3  | 0.840  | 
                  Why?
                 | 
| Interpersonal Relations | 7  | 2019  | 43  | 0.830  | 
                  Why?
                 | 
| Hepatitis C | 1  | 2023  | 37  | 0.810  | 
                  Why?
                 | 
| Clinical Trials as Topic | 3  | 2021  | 112  | 0.810  | 
                  Why?
                 | 
| Sex Workers | 7  | 2018  | 116  | 0.800  | 
                  Why?
                 | 
| Surveys and Questionnaires | 13  | 2023  | 563  | 0.750  | 
                  Why?
                 | 
| Consumer Behavior | 5  | 2019  | 20  | 0.740  | 
                  Why?
                 | 
| Social Stigma | 7  | 2024  | 80  | 0.740  | 
                  Why?
                 | 
| Contraceptive Devices, Female | 5  | 2024  | 30  | 0.740  | 
                  Why?
                 | 
| Equipment Failure | 7  | 2019  | 13  | 0.730  | 
                  Why?
                 | 
| HIV Seropositivity | 9  | 2022  | 265  | 0.720  | 
                  Why?
                 | 
| Cross-Sectional Studies | 21  | 2021  | 1422  | 0.710  | 
                  Why?
                 | 
| Patient Satisfaction | 8  | 2022  | 43  | 0.700  | 
                  Why?
                 | 
| Hair Removal | 1  | 2020  | 1  | 0.690  | 
                  Why?
                 | 
| Genitalia, Male | 1  | 2020  | 9  | 0.690  | 
                  Why?
                 | 
| Herpes Genitalis | 1  | 2020  | 43  | 0.670  | 
                  Why?
                 | 
| Acquired Immunodeficiency Syndrome | 4  | 2022  | 187  | 0.670  | 
                  Why?
                 | 
| Patient Preference | 5  | 2025  | 30  | 0.660  | 
                  Why?
                 | 
| Circumcision, Male | 4  | 2018  | 99  | 0.660  | 
                  Why?
                 | 
| Kidney Transplantation | 16  | 1996  | 42  | 0.660  | 
                  Why?
                 | 
| Sexual Health | 2  | 2024  | 14  | 0.660  | 
                  Why?
                 | 
| Levonorgestrel | 4  | 2024  | 17  | 0.640  | 
                  Why?
                 | 
| Contraception, Barrier | 2  | 2018  | 5  | 0.630  | 
                  Why?
                 | 
| Adolescent Behavior | 4  | 2014  | 60  | 0.610  | 
                  Why?
                 | 
| Contact Tracing | 3  | 2025  | 48  | 0.600  | 
                  Why?
                 | 
| Sexuality | 4  | 2012  | 11  | 0.600  | 
                  Why?
                 | 
| Mass Screening | 1  | 2020  | 245  | 0.590  | 
                  Why?
                 | 
| Anti-Retroviral Agents | 4  | 2021  | 551  | 0.580  | 
                  Why?
                 | 
| Contraceptive Agents | 5  | 2023  | 27  | 0.580  | 
                  Why?
                 | 
| Health Policy | 4  | 2020  | 140  | 0.550  | 
                  Why?
                 | 
| Incidence | 10  | 2024  | 685  | 0.550  | 
                  Why?
                 | 
| Depression | 5  | 2021  | 121  | 0.540  | 
                  Why?
                 | 
| Public Health Surveillance | 1  | 2017  | 52  | 0.540  | 
                  Why?
                 | 
| Zambia | 5  | 2023  | 115  | 0.530  | 
                  Why?
                 | 
| Delivery of Health Care | 1  | 2019  | 239  | 0.520  | 
                  Why?
                 | 
| Self Administration | 1  | 2016  | 5  | 0.520  | 
                  Why?
                 | 
| Pregnancy in Adolescence | 2  | 2014  | 15  | 0.520  | 
                  Why?
                 | 
| AIDS Serodiagnosis | 1  | 2016  | 44  | 0.500  | 
                  Why?
                 | 
| Prevalence | 10  | 2023  | 1192  | 0.500  | 
                  Why?
                 | 
| Communication Barriers | 2  | 2020  | 10  | 0.500  | 
                  Why?
                 | 
| Administration, Oral | 5  | 2025  | 127  | 0.490  | 
                  Why?
                 | 
| Attitude to Health | 6  | 2014  | 56  | 0.480  | 
                  Why?
                 | 
| Contraceptives, Oral, Combined | 7  | 2011  | 9  | 0.470  | 
                  Why?
                 | 
| Vaginal Creams, Foams, and Jellies | 3  | 2019  | 24  | 0.460  | 
                  Why?
                 | 
| Unsafe Sex | 2  | 2014  | 46  | 0.460  | 
                  Why?
                 | 
| Reproduction | 1  | 2014  | 25  | 0.450  | 
                  Why?
                 | 
| Follow-Up Studies | 8  | 2020  | 370  | 0.440  | 
                  Why?
                 | 
| Chemoprevention | 3  | 2024  | 33  | 0.430  | 
                  Why?
                 | 
| Papio | 17  | 1996  | 28  | 0.420  | 
                  Why?
                 | 
| Drug Substitution | 1  | 2013  | 33  | 0.410  | 
                  Why?
                 | 
| Substance Abuse, Intravenous | 2  | 2024  | 11  | 0.390  | 
                  Why?
                 | 
| Pyrimidines | 2  | 2024  | 32  | 0.390  | 
                  Why?
                 | 
| Sex Education | 4  | 2019  | 17  | 0.380  | 
                  Why?
                 | 
| Longitudinal Studies | 6  | 2025  | 435  | 0.370  | 
                  Why?
                 | 
| Health Services Needs and Demand | 4  | 2019  | 57  | 0.370  | 
                  Why?
                 | 
| Disease Transmission, Infectious | 3  | 2024  | 39  | 0.360  | 
                  Why?
                 | 
| Health Behavior | 3  | 2019  | 79  | 0.360  | 
                  Why?
                 | 
| Prospective Studies | 8  | 2025  | 1160  | 0.330  | 
                  Why?
                 | 
| Animals | 19  | 2020  | 1081  | 0.330  | 
                  Why?
                 | 
| Polyurethanes | 2  | 2006  | 3  | 0.320  | 
                  Why?
                 | 
| Cohort Studies | 8  | 2025  | 967  | 0.320  | 
                  Why?
                 | 
| Latex | 2  | 2006  | 3  | 0.320  | 
                  Why?
                 | 
| Women | 3  | 2017  | 12  | 0.300  | 
                  Why?
                 | 
| Progestins | 2  | 2023  | 14  | 0.300  | 
                  Why?
                 | 
| Program Evaluation | 3  | 2019  | 89  | 0.300  | 
                  Why?
                 | 
| Vagina | 4  | 2020  | 91  | 0.300  | 
                  Why?
                 | 
| HIV-1 | 5  | 2022  | 1260  | 0.300  | 
                  Why?
                 | 
| Contraceptives, Oral, Hormonal | 4  | 2013  | 6  | 0.300  | 
                  Why?
                 | 
| Menstruation | 2  | 2020  | 10  | 0.290  | 
                  Why?
                 | 
| Negotiating | 3  | 2018  | 8  | 0.290  | 
                  Why?
                 | 
| Chlamydia trachomatis | 4  | 2023  | 13  | 0.290  | 
                  Why?
                 | 
| Neisseria gonorrhoeae | 4  | 2023  | 15  | 0.290  | 
                  Why?
                 | 
| Lymphocytes | 7  | 1996  | 20  | 0.280  | 
                  Why?
                 | 
| Bone Density | 4  | 2010  | 107  | 0.270  | 
                  Why?
                 | 
| Aged | 4  | 2020  | 1740  | 0.270  | 
                  Why?
                 | 
| Drug Delivery Systems | 2  | 2019  | 252  | 0.270  | 
                  Why?
                 | 
| Women's Health | 4  | 2011  | 41  | 0.250  | 
                  Why?
                 | 
| Sexually Transmitted Diseases, Bacterial | 2  | 2020  | 4  | 0.250  | 
                  Why?
                 | 
| Risk Factors | 10  | 2020  | 1475  | 0.250  | 
                  Why?
                 | 
| Equipment Design | 4  | 2019  | 27  | 0.240  | 
                  Why?
                 | 
| Transplantation, Heterologous | 7  | 1996  | 9  | 0.240  | 
                  Why?
                 | 
| Histocompatibility Testing | 7  | 1994  | 26  | 0.240  | 
                  Why?
                 | 
| Device Removal | 2  | 2024  | 14  | 0.230  | 
                  Why?
                 | 
| Lubrication | 2  | 2020  | 3  | 0.230  | 
                  Why?
                 | 
| Patient Education as Topic | 3  | 2014  | 48  | 0.230  | 
                  Why?
                 | 
| Feasibility Studies | 4  | 2019  | 101  | 0.230  | 
                  Why?
                 | 
| Sex Hormone-Binding Globulin | 1  | 2024  | 7  | 0.230  | 
                  Why?
                 | 
| Testosterone | 1  | 2024  | 14  | 0.230  | 
                  Why?
                 | 
| Intrauterine Devices | 2  | 2023  | 9  | 0.230  | 
                  Why?
                 | 
| Harm Reduction | 1  | 2024  | 7  | 0.230  | 
                  Why?
                 | 
| Kenya | 7  | 2020  | 183  | 0.230  | 
                  Why?
                 | 
| Plasma | 1  | 2024  | 39  | 0.220  | 
                  Why?
                 | 
| Preventive Health Services | 2  | 2016  | 17  | 0.220  | 
                  Why?
                 | 
| Pandemics | 2  | 2023  | 296  | 0.220  | 
                  Why?
                 | 
| Immune Tolerance | 5  | 1994  | 22  | 0.220  | 
                  Why?
                 | 
| Trichomonas vaginalis | 1  | 2023  | 5  | 0.220  | 
                  Why?
                 | 
| Pregnant Women | 2  | 2021  | 89  | 0.210  | 
                  Why?
                 | 
| T-Lymphocytes | 7  | 1994  | 65  | 0.210  | 
                  Why?
                 | 
| Contraceptives, Postcoital | 2  | 2004  | 3  | 0.210  | 
                  Why?
                 | 
| Whole-Body Irradiation | 8  | 1996  | 9  | 0.210  | 
                  Why?
                 | 
| Mozambique | 7  | 2017  | 55  | 0.210  | 
                  Why?
                 | 
| Needs Assessment | 3  | 2019  | 29  | 0.210  | 
                  Why?
                 | 
| Hepacivirus | 1  | 2023  | 37  | 0.210  | 
                  Why?
                 | 
| Vaginal Discharge | 1  | 2002  | 3  | 0.200  | 
                  Why?
                 | 
| Ambulatory Care Facilities | 4  | 2023  | 125  | 0.200  | 
                  Why?
                 | 
| Graft Rejection | 6  | 1994  | 15  | 0.200  | 
                  Why?
                 | 
| Socioeconomic Factors | 8  | 2019  | 411  | 0.200  | 
                  Why?
                 | 
| Africa South of the Sahara | 4  | 2018  | 353  | 0.190  | 
                  Why?
                 | 
| Motivation | 4  | 2016  | 59  | 0.190  | 
                  Why?
                 | 
| Intrauterine Devices, Medicated | 1  | 2021  | 1  | 0.190  | 
                  Why?
                 | 
| Family Characteristics | 3  | 2021  | 135  | 0.180  | 
                  Why?
                 | 
| Injections, Intramuscular | 4  | 2024  | 31  | 0.180  | 
                  Why?
                 | 
| Quality of Health Care | 1  | 2021  | 62  | 0.180  | 
                  Why?
                 | 
| Disclosure | 1  | 2021  | 25  | 0.180  | 
                  Why?
                 | 
| Fertility | 1  | 2021  | 22  | 0.180  | 
                  Why?
                 | 
| Income | 1  | 2021  | 85  | 0.180  | 
                  Why?
                 | 
| Desogestrel | 1  | 2021  | 2  | 0.180  | 
                  Why?
                 | 
| Graft Survival | 9  | 1994  | 40  | 0.180  | 
                  Why?
                 | 
| Cell Phone Use | 1  | 2021  | 6  | 0.180  | 
                  Why?
                 | 
| Risk Reduction Behavior | 2  | 2018  | 39  | 0.180  | 
                  Why?
                 | 
| Silicones | 1  | 2020  | 2  | 0.170  | 
                  Why?
                 | 
| Vaginal Douching | 2  | 2011  | 8  | 0.170  | 
                  Why?
                 | 
| Lacerations | 1  | 2020  | 1  | 0.170  | 
                  Why?
                 | 
| Retreatment | 1  | 2020  | 6  | 0.170  | 
                  Why?
                 | 
| Intimate Partner Violence | 2  | 2019  | 55  | 0.170  | 
                  Why?
                 | 
| Health Promotion | 4  | 2015  | 109  | 0.170  | 
                  Why?
                 | 
| Herpesvirus 2, Human | 1  | 2020  | 43  | 0.170  | 
                  Why?
                 | 
| Self Report | 2  | 2024  | 114  | 0.170  | 
                  Why?
                 | 
| Heroin Dependence | 1  | 2020  | 8  | 0.170  | 
                  Why?
                 | 
| Alcoholism | 1  | 2020  | 17  | 0.170  | 
                  Why?
                 | 
| Antiviral Agents | 1  | 2021  | 111  | 0.170  | 
                  Why?
                 | 
| Private Sector | 1  | 2020  | 45  | 0.170  | 
                  Why?
                 | 
| Interleukin-2 | 6  | 1996  | 22  | 0.160  | 
                  Why?
                 | 
| National Health Programs | 1  | 2020  | 78  | 0.160  | 
                  Why?
                 | 
| Child | 5  | 2021  | 2242  | 0.160  | 
                  Why?
                 | 
| Follicle Stimulating Hormone | 3  | 2011  | 11  | 0.160  | 
                  Why?
                 | 
| Breast Feeding | 1  | 2020  | 120  | 0.150  | 
                  Why?
                 | 
| Reproductive Tract Infections | 1  | 2018  | 8  | 0.150  | 
                  Why?
                 | 
| Aged, 80 and over | 1  | 2020  | 468  | 0.150  | 
                  Why?
                 | 
| Women's Health Services | 2  | 2018  | 12  | 0.150  | 
                  Why?
                 | 
| Quinine | 1  | 1998  | 3  | 0.150  | 
                  Why?
                 | 
| Abortifacient Agents | 1  | 1998  | 4  | 0.150  | 
                  Why?
                 | 
| Zimbabwe | 4  | 2021  | 120  | 0.150  | 
                  Why?
                 | 
| Community Health Centers | 1  | 2018  | 9  | 0.150  | 
                  Why?
                 | 
| Truth Disclosure | 1  | 2018  | 18  | 0.150  | 
                  Why?
                 | 
| Family Relations | 1  | 2018  | 7  | 0.150  | 
                  Why?
                 | 
| Diaphragm | 1  | 2018  | 2  | 0.140  | 
                  Why?
                 | 
| Decision Making | 3  | 2013  | 53  | 0.140  | 
                  Why?
                 | 
| Self Efficacy | 1  | 2018  | 11  | 0.140  | 
                  Why?
                 | 
| Uganda | 4  | 2024  | 197  | 0.140  | 
                  Why?
                 | 
| Administration, Intravaginal | 4  | 2021  | 50  | 0.140  | 
                  Why?
                 | 
| Practice Patterns, Physicians' | 1  | 2018  | 43  | 0.140  | 
                  Why?
                 | 
| Health Risk Behaviors | 1  | 2017  | 7  | 0.140  | 
                  Why?
                 | 
| Anti-Bacterial Agents | 1  | 2020  | 293  | 0.140  | 
                  Why?
                 | 
| Prenatal Care | 1  | 2019  | 147  | 0.140  | 
                  Why?
                 | 
| Menopause | 2  | 2011  | 24  | 0.140  | 
                  Why?
                 | 
| Anti-Infective Agents | 1  | 2018  | 57  | 0.140  | 
                  Why?
                 | 
| Principal Component Analysis | 1  | 2017  | 20  | 0.140  | 
                  Why?
                 | 
| Patient Compliance | 2  | 2015  | 120  | 0.140  | 
                  Why?
                 | 
| Lymphatic System | 4  | 1989  | 4  | 0.130  | 
                  Why?
                 | 
| Cultural Characteristics | 6  | 2013  | 15  | 0.130  | 
                  Why?
                 | 
| Urban Population | 3  | 2021  | 257  | 0.130  | 
                  Why?
                 | 
| Home Nursing | 1  | 2016  | 8  | 0.130  | 
                  Why?
                 | 
| Lymphocyte Culture Test, Mixed | 6  | 1994  | 7  | 0.130  | 
                  Why?
                 | 
| Lymphokines | 1  | 1996  | 1  | 0.130  | 
                  Why?
                 | 
| Th2 Cells | 1  | 1996  | 2  | 0.130  | 
                  Why?
                 | 
| Th1 Cells | 1  | 1996  | 6  | 0.130  | 
                  Why?
                 | 
| Health Education | 1  | 2016  | 35  | 0.120  | 
                  Why?
                 | 
| Injections | 2  | 2013  | 31  | 0.120  | 
                  Why?
                 | 
| Nurse Administrators | 1  | 2015  | 9  | 0.120  | 
                  Why?
                 | 
| Rural Population | 3  | 2012  | 654  | 0.120  | 
                  Why?
                 | 
| Antiretroviral Therapy, Highly Active | 1  | 2018  | 472  | 0.120  | 
                  Why?
                 | 
| Nurses | 1  | 2015  | 32  | 0.120  | 
                  Why?
                 | 
| Absorbent Pads | 1  | 2015  | 2  | 0.120  | 
                  Why?
                 | 
| Lymphoid Tissue | 6  | 1994  | 7  | 0.120  | 
                  Why?
                 | 
| Receptors, Interleukin-2 | 3  | 1992  | 5  | 0.120  | 
                  Why?
                 | 
| India | 4  | 2017  | 62  | 0.120  | 
                  Why?
                 | 
| Logistic Models | 4  | 2021  | 254  | 0.110  | 
                  Why?
                 | 
| Dancing | 1  | 2014  | 1  | 0.110  | 
                  Why?
                 | 
| Endemic Diseases | 1  | 2014  | 15  | 0.110  | 
                  Why?
                 | 
| Preconception Care | 2  | 2024  | 12  | 0.110  | 
                  Why?
                 | 
| Time Factors | 6  | 2007  | 507  | 0.110  | 
                  Why?
                 | 
| DNA Repair | 1  | 1994  | 11  | 0.110  | 
                  Why?
                 | 
| DNA Damage | 1  | 1994  | 12  | 0.110  | 
                  Why?
                 | 
| Substance-Related Disorders | 1  | 2014  | 51  | 0.110  | 
                  Why?
                 | 
| Antineoplastic Agents | 1  | 1994  | 62  | 0.110  | 
                  Why?
                 | 
| Vaginal Diseases | 2  | 2011  | 4  | 0.110  | 
                  Why?
                 | 
| Risk Assessment | 4  | 2020  | 225  | 0.100  | 
                  Why?
                 | 
| Delayed-Action Preparations | 4  | 2020  | 68  | 0.100  | 
                  Why?
                 | 
| Drug Implants | 2  | 2024  | 24  | 0.100  | 
                  Why?
                 | 
| Cells, Cultured | 5  | 1996  | 79  | 0.100  | 
                  Why?
                 | 
| Peer Group | 1  | 2012  | 14  | 0.100  | 
                  Why?
                 | 
| Treatment Outcome | 3  | 2020  | 889  | 0.100  | 
                  Why?
                 | 
| Primary Health Care | 2  | 2011  | 240  | 0.100  | 
                  Why?
                 | 
| Pregnancy, Unwanted | 4  | 2016  | 9  | 0.090  | 
                  Why?
                 | 
| Randomized Controlled Trials as Topic | 1  | 2012  | 244  | 0.090  | 
                  Why?
                 | 
| Africa | 2  | 2025  | 376  | 0.090  | 
                  Why?
                 | 
| Ceremonial Behavior | 1  | 2011  | 2  | 0.090  | 
                  Why?
                 | 
| Kidney Neoplasms | 1  | 1991  | 2  | 0.090  | 
                  Why?
                 | 
| Antibodies, Anti-Idiotypic | 1  | 1991  | 5  | 0.090  | 
                  Why?
                 | 
| Chi-Square Distribution | 1  | 2010  | 45  | 0.090  | 
                  Why?
                 | 
| United States | 3  | 2020  | 132  | 0.090  | 
                  Why?
                 | 
| Administration, Cutaneous | 1  | 2010  | 31  | 0.080  | 
                  Why?
                 | 
| Immunoglobulin G | 2  | 1994  | 231  | 0.080  | 
                  Why?
                 | 
| Reproductive Rights | 1  | 2009  | 5  | 0.080  | 
                  Why?
                 | 
| Cross-Cultural Comparison | 1  | 2009  | 16  | 0.080  | 
                  Why?
                 | 
| Withholding Treatment | 1  | 2010  | 26  | 0.080  | 
                  Why?
                 | 
| Data Collection | 1  | 2010  | 86  | 0.080  | 
                  Why?
                 | 
| Body Mass Index | 3  | 2023  | 321  | 0.080  | 
                  Why?
                 | 
| Suppressor Factors, Immunologic | 1  | 1989  | 1  | 0.080  | 
                  Why?
                 | 
| Weight Gain | 1  | 2010  | 77  | 0.080  | 
                  Why?
                 | 
| Bone Diseases, Metabolic | 1  | 2009  | 11  | 0.080  | 
                  Why?
                 | 
| Coitus | 2  | 2019  | 15  | 0.080  | 
                  Why?
                 | 
| Antibody Formation | 1  | 1989  | 61  | 0.080  | 
                  Why?
                 | 
| Age Factors | 4  | 2020  | 370  | 0.070  | 
                  Why?
                 | 
| Contraception, Postcoital | 1  | 2007  | 1  | 0.070  | 
                  Why?
                 | 
| Cities | 2  | 2018  | 37  | 0.070  | 
                  Why?
                 | 
| Terminology as Topic | 1  | 2007  | 11  | 0.070  | 
                  Why?
                 | 
| Tacrolimus | 2  | 1996  | 5  | 0.060  | 
                  Why?
                 | 
| Organophosphates | 1  | 2025  | 9  | 0.060  | 
                  Why?
                 | 
| Contraceptive Devices | 2  | 2021  | 3  | 0.060  | 
                  Why?
                 | 
| Needle-Exchange Programs | 1  | 2024  | 3  | 0.060  | 
                  Why?
                 | 
| Lymphocyte Activation | 2  | 1994  | 40  | 0.060  | 
                  Why?
                 | 
| Adenine | 1  | 2025  | 91  | 0.060  | 
                  Why?
                 | 
| Estradiol | 1  | 2024  | 18  | 0.060  | 
                  Why?
                 | 
| Policy Making | 2  | 2016  | 32  | 0.060  | 
                  Why?
                 | 
| Urban Health | 3  | 2012  | 78  | 0.050  | 
                  Why?
                 | 
| Sex Factors | 2  | 2019  | 227  | 0.050  | 
                  Why?
                 | 
| Materials Testing | 2  | 2014  | 16  | 0.050  | 
                  Why?
                 | 
| Biomarkers | 3  | 2003  | 327  | 0.050  | 
                  Why?
                 | 
| China | 2  | 2013  | 21  | 0.050  | 
                  Why?
                 | 
| Standard of Care | 1  | 2023  | 30  | 0.050  | 
                  Why?
                 | 
| Parenting | 1  | 2023  | 22  | 0.050  | 
                  Why?
                 | 
| Amenorrhea | 1  | 2002  | 9  | 0.050  | 
                  Why?
                 | 
| Primary Prevention | 2  | 2013  | 27  | 0.050  | 
                  Why?
                 | 
| Lymphocyte Transfusion | 2  | 1996  | 2  | 0.050  | 
                  Why?
                 | 
| Infant | 2  | 2023  | 2244  | 0.050  | 
                  Why?
                 | 
| Health Status | 1  | 2023  | 111  | 0.050  | 
                  Why?
                 | 
| Global Health | 3  | 2008  | 193  | 0.050  | 
                  Why?
                 | 
| Reverse Transcriptase Inhibitors | 1  | 2022  | 118  | 0.050  | 
                  Why?
                 | 
| Communicable Disease Control | 1  | 2022  | 101  | 0.050  | 
                  Why?
                 | 
| Research Design | 2  | 2012  | 124  | 0.050  | 
                  Why?
                 | 
| Cadaver | 3  | 1991  | 5  | 0.040  | 
                  Why?
                 | 
| Educational Status | 3  | 2007  | 68  | 0.040  | 
                  Why?
                 | 
| Indonesia | 2  | 2011  | 7  | 0.040  | 
                  Why?
                 | 
| Mutation | 1  | 2022  | 306  | 0.040  | 
                  Why?
                 | 
| Thailand | 2  | 2011  | 26  | 0.040  | 
                  Why?
                 | 
| Disease Susceptibility | 1  | 2020  | 46  | 0.040  | 
                  Why?
                 | 
| Genotype | 1  | 2022  | 442  | 0.040  | 
                  Why?
                 | 
| Prognosis | 2  | 1991  | 199  | 0.040  | 
                  Why?
                 | 
| Heroin | 1  | 2020  | 4  | 0.040  | 
                  Why?
                 | 
| Antirheumatic Agents | 1  | 2020  | 35  | 0.040  | 
                  Why?
                 | 
| Obesity | 1  | 2023  | 367  | 0.040  | 
                  Why?
                 | 
| Gender Identity | 2  | 2011  | 23  | 0.040  | 
                  Why?
                 | 
| Drug Resistance, Viral | 1  | 2022  | 278  | 0.040  | 
                  Why?
                 | 
| Culture | 2  | 2011  | 23  | 0.040  | 
                  Why?
                 | 
| Factor Analysis, Statistical | 1  | 2019  | 11  | 0.040  | 
                  Why?
                 | 
| Immunosuppressive Agents | 3  | 1996  | 20  | 0.040  | 
                  Why?
                 | 
| Psychometrics | 1  | 2019  | 22  | 0.040  | 
                  Why?
                 | 
| Pilot Projects | 1  | 2019  | 179  | 0.040  | 
                  Why?
                 | 
| Trichomonas Vaginitis | 1  | 2018  | 4  | 0.040  | 
                  Why?
                 | 
| Trichomonas Infections | 1  | 2018  | 5  | 0.040  | 
                  Why?
                 | 
| Herpes Simplex | 1  | 2018  | 7  | 0.040  | 
                  Why?
                 | 
| Syphilis | 1  | 2018  | 14  | 0.040  | 
                  Why?
                 | 
| Vaginosis, Bacterial | 1  | 2018  | 19  | 0.040  | 
                  Why?
                 | 
| Tetradecanoylphorbol Acetate | 2  | 1996  | 7  | 0.040  | 
                  Why?
                 | 
| Candidiasis | 1  | 2018  | 15  | 0.040  | 
                  Why?
                 | 
| Africa, Southern | 1  | 2018  | 91  | 0.040  | 
                  Why?
                 | 
| Dose-Response Relationship, Drug | 1  | 1998  | 125  | 0.040  | 
                  Why?
                 | 
| Heterosexuality | 1  | 2018  | 30  | 0.040  | 
                  Why?
                 | 
| Physicians | 1  | 2018  | 31  | 0.040  | 
                  Why?
                 | 
| Cell Separation | 2  | 1988  | 6  | 0.040  | 
                  Why?
                 | 
| Health Surveys | 2  | 2011  | 59  | 0.040  | 
                  Why?
                 | 
| Spouse Abuse | 1  | 2017  | 12  | 0.040  | 
                  Why?
                 | 
| Multivariate Analysis | 2  | 2011  | 171  | 0.030  | 
                  Why?
                 | 
| Predictive Value of Tests | 2  | 2003  | 188  | 0.030  | 
                  Why?
                 | 
| Retrospective Studies | 2  | 2011  | 799  | 0.030  | 
                  Why?
                 | 
| Community Health Workers | 1  | 2018  | 66  | 0.030  | 
                  Why?
                 | 
| Disabled Persons | 1  | 2017  | 23  | 0.030  | 
                  Why?
                 | 
| Financing, Personal | 1  | 2017  | 12  | 0.030  | 
                  Why?
                 | 
| Transplantation, Homologous | 4  | 1994  | 6  | 0.030  | 
                  Why?
                 | 
| Antibodies | 2  | 1994  | 25  | 0.030  | 
                  Why?
                 | 
| Professional Staff Committees | 1  | 2016  | 1  | 0.030  | 
                  Why?
                 | 
| Social Welfare | 1  | 2016  | 3  | 0.030  | 
                  Why?
                 | 
| Cytotoxicity, Immunologic | 3  | 1994  | 7  | 0.030  | 
                  Why?
                 | 
| United Nations | 1  | 2016  | 12  | 0.030  | 
                  Why?
                 | 
| Sex Offenses | 1  | 2016  | 29  | 0.030  | 
                  Why?
                 | 
| Cholera Toxin | 1  | 1996  | 1  | 0.030  | 
                  Why?
                 | 
| Colforsin | 1  | 1996  | 1  | 0.030  | 
                  Why?
                 | 
| Ionomycin | 1  | 1996  | 1  | 0.030  | 
                  Why?
                 | 
| Protein Kinase C | 1  | 1996  | 2  | 0.030  | 
                  Why?
                 | 
| Virulence Factors, Bordetella | 1  | 1996  | 3  | 0.030  | 
                  Why?
                 | 
| Enzyme Activation | 1  | 1996  | 3  | 0.030  | 
                  Why?
                 | 
| Zoonoses | 1  | 1996  | 4  | 0.030  | 
                  Why?
                 | 
| Interleukin-4 | 1  | 1996  | 7  | 0.030  | 
                  Why?
                 | 
| Hematopoietic Stem Cell Transplantation | 1  | 1996  | 6  | 0.030  | 
                  Why?
                 | 
| Ambulatory Care | 1  | 2016  | 54  | 0.030  | 
                  Why?
                 | 
| Viruses | 1  | 1996  | 47  | 0.030  | 
                  Why?
                 | 
| Killer Cells, Natural | 3  | 1994  | 52  | 0.030  | 
                  Why?
                 | 
| Rural Health | 2  | 2007  | 118  | 0.030  | 
                  Why?
                 | 
| Isoantibodies | 2  | 1994  | 15  | 0.030  | 
                  Why?
                 | 
| Case-Control Studies | 2  | 2009  | 480  | 0.030  | 
                  Why?
                 | 
| Marital Status | 2  | 2005  | 11  | 0.030  | 
                  Why?
                 | 
| Learning Curve | 1  | 2014  | 2  | 0.030  | 
                  Why?
                 | 
| Employment | 2  | 2005  | 27  | 0.030  | 
                  Why?
                 | 
| Isoantigens | 1  | 1994  | 2  | 0.030  | 
                  Why?
                 | 
| Cyclosporine | 1  | 1994  | 4  | 0.030  | 
                  Why?
                 | 
| Histocompatibility Antigens Class II | 2  | 1991  | 11  | 0.030  | 
                  Why?
                 | 
| Histocompatibility Antigens Class I | 2  | 1991  | 16  | 0.030  | 
                  Why?
                 | 
| Antigens, Heterophile | 1  | 1994  | 2  | 0.030  | 
                  Why?
                 | 
| Uveitis | 1  | 1974  | 5  | 0.030  | 
                  Why?
                 | 
| Behavior, Addictive | 1  | 2014  | 2  | 0.030  | 
                  Why?
                 | 
| Benzamides | 1  | 1994  | 1  | 0.030  | 
                  Why?
                 | 
| Cytarabine | 1  | 1994  | 1  | 0.030  | 
                  Why?
                 | 
| Novobiocin | 1  | 1994  | 1  | 0.030  | 
                  Why?
                 | 
| Radiation-Sensitizing Agents | 1  | 1994  | 1  | 0.030  | 
                  Why?
                 | 
| Vidarabine | 1  | 1994  | 1  | 0.030  | 
                  Why?
                 | 
| Aphidicolin | 1  | 1994  | 1  | 0.030  | 
                  Why?
                 | 
| Antibody-Dependent Cell Cytotoxicity | 1  | 1994  | 36  | 0.030  | 
                  Why?
                 | 
| Doxorubicin | 1  | 1994  | 8  | 0.030  | 
                  Why?
                 | 
| Gamma Rays | 1  | 1994  | 3  | 0.030  | 
                  Why?
                 | 
| Naphthoquinones | 1  | 1994  | 3  | 0.030  | 
                  Why?
                 | 
| Flavonoids | 1  | 1994  | 7  | 0.030  | 
                  Why?
                 | 
| Rats, Sprague-Dawley | 1  | 1994  | 63  | 0.030  | 
                  Why?
                 | 
| Kinetics | 1  | 1994  | 65  | 0.030  | 
                  Why?
                 | 
| Rats | 1  | 1994  | 130  | 0.030  | 
                  Why?
                 | 
| HLA Antigens | 3  | 1991  | 50  | 0.030  | 
                  Why?
                 | 
| Refusal to Treat | 1  | 2013  | 3  | 0.030  | 
                  Why?
                 | 
| Risk | 1  | 2013  | 87  | 0.030  | 
                  Why?
                 | 
| Transgender Persons | 1  | 2013  | 24  | 0.030  | 
                  Why?
                 | 
| Teaching Materials | 1  | 2012  | 2  | 0.030  | 
                  Why?
                 | 
| Selection Bias | 1  | 2012  | 4  | 0.030  | 
                  Why?
                 | 
| Government Regulation | 1  | 2012  | 5  | 0.030  | 
                  Why?
                 | 
| Occupational Health | 1  | 2013  | 24  | 0.030  | 
                  Why?
                 | 
| Marketing of Health Services | 1  | 2012  | 2  | 0.020  | 
                  Why?
                 | 
| Research | 1  | 2012  | 65  | 0.020  | 
                  Why?
                 | 
| Social Conditions | 1  | 2012  | 10  | 0.020  | 
                  Why?
                 | 
| Equipment Failure Analysis | 1  | 2012  | 1  | 0.020  | 
                  Why?
                 | 
| Killer Cells, Lymphokine-Activated | 1  | 1992  | 1  | 0.020  | 
                  Why?
                 | 
| Sex Distribution | 1  | 2012  | 89  | 0.020  | 
                  Why?
                 | 
| Histocompatibility Antigens | 1  | 1991  | 1  | 0.020  | 
                  Why?
                 | 
| Vulnerable Populations | 1  | 2012  | 30  | 0.020  | 
                  Why?
                 | 
| Public Opinion | 1  | 2011  | 6  | 0.020  | 
                  Why?
                 | 
| Immunization | 1  | 1992  | 63  | 0.020  | 
                  Why?
                 | 
| Sex Characteristics | 1  | 2011  | 43  | 0.020  | 
                  Why?
                 | 
| Madagascar | 1  | 2011  | 3  | 0.020  | 
                  Why?
                 | 
| Lymphatic Irradiation | 1  | 1991  | 2  | 0.020  | 
                  Why?
                 | 
| Residence Characteristics | 1  | 2011  | 57  | 0.020  | 
                  Why?
                 | 
| United States Food and Drug Administration | 1  | 2010  | 2  | 0.020  | 
                  Why?
                 | 
| Bone Resorption | 1  | 2010  | 3  | 0.020  | 
                  Why?
                 | 
| Cytotoxicity Tests, Immunologic | 2  | 1989  | 3  | 0.020  | 
                  Why?
                 | 
| CD4 Lymphocyte Count | 1  | 2011  | 656  | 0.020  | 
                  Why?
                 | 
| Social Control, Informal | 1  | 2009  | 5  | 0.020  | 
                  Why?
                 | 
| Time | 1  | 2009  | 3  | 0.020  | 
                  Why?
                 | 
| Body Weight | 1  | 2010  | 111  | 0.020  | 
                  Why?
                 | 
| Role | 1  | 2009  | 4  | 0.020  | 
                  Why?
                 | 
| Child, Preschool | 2  | 1991  | 1748  | 0.020  | 
                  Why?
                 | 
| Leukocytes, Mononuclear | 1  | 1988  | 60  | 0.020  | 
                  Why?
                 | 
| Medroxyprogesterone | 1  | 2008  | 1  | 0.020  | 
                  Why?
                 | 
| Blood | 1  | 1988  | 51  | 0.020  | 
                  Why?
                 | 
| T-Lymphocytes, Regulatory | 1  | 1987  | 7  | 0.020  | 
                  Why?
                 | 
| Social Class | 1  | 2007  | 73  | 0.020  | 
                  Why?
                 | 
| Absorptiometry, Photon | 1  | 2007  | 85  | 0.020  | 
                  Why?
                 | 
| Social Conformity | 1  | 2006  | 2  | 0.020  | 
                  Why?
                 | 
| Social Marketing | 1  | 2006  | 3  | 0.020  | 
                  Why?
                 | 
| Self Disclosure | 1  | 2006  | 8  | 0.020  | 
                  Why?
                 | 
| Schools | 1  | 2006  | 73  | 0.020  | 
                  Why?
                 | 
| Antibodies, Monoclonal | 1  | 1987  | 142  | 0.020  | 
                  Why?
                 | 
| Health Care Surveys | 1  | 2004  | 30  | 0.010  | 
                  Why?
                 | 
| Emergencies | 1  | 2004  | 16  | 0.010  | 
                  Why?
                 | 
| Immunity, Cellular | 2  | 1991  | 25  | 0.010  | 
                  Why?
                 | 
| Kidney Failure, Chronic | 1  | 1983  | 27  | 0.010  | 
                  Why?
                 | 
| Recombinant Proteins | 2  | 1994  | 73  | 0.010  | 
                  Why?
                 | 
| Exercise | 1  | 2005  | 205  | 0.010  | 
                  Why?
                 | 
| Blood Grouping and Crossmatching | 2  | 1992  | 2  | 0.010  | 
                  Why?
                 | 
| Antibodies, Viral | 2  | 1996  | 284  | 0.010  | 
                  Why?
                 | 
| Liver Transplantation | 2  | 1994  | 55  | 0.010  | 
                  Why?
                 | 
| Cyclosporins | 2  | 1991  | 3  | 0.010  | 
                  Why?
                 | 
| Azathioprine | 2  | 1991  | 4  | 0.010  | 
                  Why?
                 | 
| Prednisone | 2  | 1991  | 17  | 0.010  | 
                  Why?
                 | 
| Transplantation Immunology | 2  | 1987  | 2  | 0.010  | 
                  Why?
                 | 
| Chorionic Gonadotropin, beta Subunit, Human | 1  | 1996  | 2  | 0.010  | 
                  Why?
                 | 
| Microscopy, Electron | 1  | 1996  | 5  | 0.010  | 
                  Why?
                 | 
| Spleen | 1  | 1996  | 9  | 0.010  | 
                  Why?
                 | 
| Oligonucleotides, Antisense | 1  | 1996  | 6  | 0.010  | 
                  Why?
                 | 
| Lymph Nodes | 1  | 1996  | 13  | 0.010  | 
                  Why?
                 | 
| Fetal Blood | 1  | 1996  | 27  | 0.010  | 
                  Why?
                 | 
| DNA Primers | 1  | 1996  | 55  | 0.010  | 
                  Why?
                 | 
| Base Sequence | 1  | 1996  | 149  | 0.010  | 
                  Why?
                 | 
| DNA | 1  | 1996  | 73  | 0.010  | 
                  Why?
                 | 
| Kidney | 1  | 1996  | 46  | 0.010  | 
                  Why?
                 | 
| Molecular Sequence Data | 1  | 1996  | 263  | 0.010  | 
                  Why?
                 | 
| Virus Replication | 1  | 1996  | 88  | 0.010  | 
                  Why?
                 | 
| Polymerase Chain Reaction | 1  | 1996  | 260  | 0.010  | 
                  Why?
                 | 
| Lens, Crystalline | 1  | 1974  | 1  | 0.010  | 
                  Why?
                 | 
| Scintillation Counting | 1  | 1974  | 1  | 0.010  | 
                  Why?
                 | 
| Tritium | 1  | 1974  | 1  | 0.010  | 
                  Why?
                 | 
| Uvea | 1  | 1974  | 1  | 0.010  | 
                  Why?
                 | 
| Antigens | 1  | 1974  | 11  | 0.010  | 
                  Why?
                 | 
| Thymidine | 1  | 1974  | 6  | 0.010  | 
                  Why?
                 | 
| Species Specificity | 1  | 1994  | 49  | 0.010  | 
                  Why?
                 | 
| Drug Resistance | 1  | 1994  | 35  | 0.010  | 
                  Why?
                 | 
| Solubility | 1  | 1974  | 51  | 0.010  | 
                  Why?
                 | 
| Binding, Competitive | 1  | 1994  | 2  | 0.010  | 
                  Why?
                 | 
| Biopsy | 1  | 1994  | 38  | 0.010  | 
                  Why?
                 | 
| Cell Division | 1  | 1994  | 12  | 0.010  | 
                  Why?
                 | 
| Antibody Specificity | 1  | 1994  | 30  | 0.010  | 
                  Why?
                 | 
| Endothelium, Vascular | 1  | 1994  | 29  | 0.010  | 
                  Why?
                 | 
| Flow Cytometry | 1  | 1994  | 67  | 0.010  | 
                  Why?
                 | 
| ABO Blood-Group System | 1  | 1992  | 5  | 0.010  | 
                  Why?
                 | 
| CD56 Antigen | 1  | 1992  | 5  | 0.010  | 
                  Why?
                 | 
| Antigens, Differentiation, T-Lymphocyte | 1  | 1992  | 3  | 0.010  | 
                  Why?
                 | 
| Human T-lymphotropic virus 1 | 1  | 1991  | 1  | 0.010  | 
                  Why?
                 | 
| Hemagglutination | 1  | 1991  | 3  | 0.010  | 
                  Why?
                 | 
| Antigens, CD | 1  | 1992  | 26  | 0.010  | 
                  Why?
                 | 
| Cross Reactions | 1  | 1991  | 44  | 0.010  | 
                  Why?
                 | 
| Survival Analysis | 1  | 1989  | 149  | 0.000  | 
                  Why?
                 | 
| Radiotherapy Dosage | 1  | 1989  | 13  | 0.000  | 
                  Why?
                 | 
| Reference Values | 1  | 1989  | 64  | 0.000  | 
                  Why?
                 | 
| Cobalt Radioisotopes | 1  | 1987  | 4  | 0.000  | 
                  Why?
                 | 
| Radiation Dosage | 1  | 1986  | 2  | 0.000  | 
                  Why?
                 | 
| Bone Marrow Transplantation | 1  | 1986  | 3  | 0.000  | 
                  Why?
                 | 
| Actuarial Analysis | 1  | 1983  | 1  | 0.000  | 
                  Why?
                 | 
| Blood Transfusion | 1  | 1983  | 13  | 0.000  | 
                  Why?
                 | 
| Acute Kidney Injury | 1  | 1983  | 15  | 0.000  | 
                  Why?
                 | 
| Consanguinity | 1  | 1976  | 2  | 0.000  | 
                  Why?
                 |