| 2044 | Humans |
| 1685 | HIV Infections |
| 1534 | Female |
| 1362 | Male |
| 1205 | Adult |
| 826 | South Africa |
| 723 | Adolescent |
| 681 | Middle Aged |
| 647 | Young Adult |
| 610 | Socioeconomic Factors |
| 364 | Anti-HIV Agents |
| 354 | Acquired Immunodeficiency Syndrome |
| 322 | Risk Factors |
| 310 | Africa South of the Sahara |
| 304 | Prevalence |
| 294 | Cross-Sectional Studies |
| 285 | Child |
| 276 | Health Knowledge, Attitudes, Practice |
| 268 | HIV-1 |
| 266 | Surveys and Questionnaires |
| 249 | Sexual Behavior |
| 217 | Pregnancy |
| 215 | CD4 Lymphocyte Count |
| 205 | Antiretroviral Therapy, Highly Active |
| 166 | AIDS-Related Opportunistic Infections |
| 160 | Aged |
| 158 | Infant |
| 158 | Anti-Retroviral Agents |
| 157 | Sexual Partners |
| 152 | Viral Load |
| 152 | Rural Population |
| 150 | Health Services Accessibility |
| 146 | Child, Preschool |
| 143 | Zambia |
| 141 | Qualitative Research |
| 141 | Developing Countries |
| 137 | Infectious Disease Transmission, Vertical |
| 133 | Patient Acceptance of Health Care |
| 131 | Interviews as Topic |
| 130 | Risk-Taking |
| 124 | Tuberculosis |
| 124 | Medication Adherence |
| 119 | Social Support |
| 119 | HIV Seropositivity |
| 118 | Treatment Outcome |
| 115 | Pregnancy Complications, Infectious |
| 115 | Counseling |
| 113 | Cohort Studies |
| 111 | Social Stigma |
| 107 | Incidence |
| 106 | Condoms |
| 104 | Sex Factors |
| 103 | Prospective Studies |
| 96 | Age Factors |
| 95 | Retrospective Studies |
| 95 | Infant, Newborn |
| 93 | Poverty |
| 85 | Uganda |
| 83 | Focus Groups |
| 83 | Africa |
| 82 | Mass Screening |
| 80 | Logistic Models |
| 80 | AIDS Serodiagnosis |
| 79 | Urban Population |
| 77 | HIV |
| 70 | Health Surveys |
| 68 | Time Factors |
| 64 | Ghana |
| 62 | Program Evaluation |
| 62 | Caregivers |
| 61 | Kenya |
| 59 | Follow-Up Studies |
| 58 | Family Characteristics |
| 58 | Attitude to Health |
| 56 | Health Policy |
| 56 | Health Education |
| 55 | Patient Compliance |
| 55 | Educational Status |
| 55 | Delivery of Health Care |
| 54 | Quality of Life |
| 54 | Prejudice |
| 52 | Zimbabwe |
| 52 | Population Surveillance |
| 51 | Antitubercular Agents |
| 50 | Global Health |
| 50 | Disease Outbreaks |
| 50 | African Continental Ancestry Group |
| 49 | Tanzania |
| 49 | Sexually Transmitted Diseases |
| 48 | Stereotyping |
| 48 | Mothers |
| 47 | Homosexuality, Male |
| 47 | Health Promotion |
| 46 | Unsafe Sex |
| 46 | Multivariate Analysis |
| 46 | Malawi |
| 46 | Coinfection |
| 45 | Longitudinal Studies |
| 44 | Culture |
| 43 | Tuberculosis, Pulmonary |
| 43 | Interpersonal Relations |
| 43 | Demography |
| 43 | Aged, 80 and over |
| 43 | AIDS Vaccines |
| 41 | Risk Assessment |
| 41 | Nigeria |
| 41 | Child, Orphaned |
| 40 | Health Services Needs and Demand |
| 40 | Adaptation, Psychological |
| 39 | Age Distribution |
| 38 | Randomized Controlled Trials as Topic |
| 38 | RNA, Viral |
| 38 | Disease Progression |
| 37 | Residence Characteristics |
| 37 | Motivation |
| 37 | Genotype |
| 37 | Community Health Services |
| 36 | Truth Disclosure |
| 36 | Pilot Projects |
| 36 | Drug Resistance, Viral |
| 36 | Circumcision, Male |
| 36 | Case-Control Studies |
| 36 | Alcohol Drinking |
| 35 | Sex Distribution |
| 35 | Mycobacterium tuberculosis |
| 35 | Depression |
| 34 | Social Class |
| 34 | Primary Health Care |
| 34 | Health Personnel |
| 33 | Vulnerable Populations |
| 33 | Virus Diseases |
| 33 | United States |
| 33 | Senegal |
| 33 | Prenatal Care |
| 33 | Communication |
| 33 | Animals |
| 32 | Regression Analysis |
| 32 | Politics |
| 32 | International Cooperation |
| 32 | Health Status |
| 32 | Drug Therapy, Combination |
| 32 | Disease |
| 31 | Tenofovir |
| 31 | Comorbidity |
| 31 | Adolescent Behavior |
| 30 | Women's Health |
| 30 | Risk Reduction Behavior |
| 30 | Odds Ratio |
| 29 | Stress, Psychological |
| 29 | Social Environment |
| 29 | Models, Theoretical |
| 29 | Family |
| 29 | Economics |
| 29 | Cost-Benefit Analysis |
| 29 | Clinical Trials as Topic |
| 28 | Home Care Services |
| 28 | Attitude of Health Personnel |
| 28 | Ambulatory Care Facilities |
| 27 | Substance-Related Disorders |
| 27 | Rural Health |
| 26 | Survival Analysis |
| 26 | Safe Sex |
| 26 | Health Behavior |
| 26 | Cause of Death |
| 26 | Breast Feeding |
| 26 | Africa, Southern |
| 25 | Public Health |
| 25 | Perception |
| 24 | Transients and Migrants |
| 24 | Sex Work |
| 24 | Nevirapine |
| 24 | Epidemics |
| 24 | CD4-Positive T-Lymphocytes |
| 23 | Phylogeny |
| 23 | Mental Disorders |
| 23 | Ethiopia |
| 23 | Decision Making |
| 23 | Cultural Characteristics |
| 22 | World Health Organization |
| 22 | Reproducibility of Results |
| 22 | HIV Seroprevalence |
| 22 | Epidemiologic Methods |
| 22 | Drug Administration Schedule |
| 22 | Communicable Disease Control |
| 21 | Patient Education as Topic |
| 21 | Medicine, African Traditional |
| 21 | Marriage |
| 21 | Health Services |
| 21 | Health Services Research |
| 21 | Food Supply |
| 21 | Feasibility Studies |
| 21 | Data Collection |
| 21 | Cost of Illness |
| 21 | Africa, Eastern |
| 20 | Schools |
| 20 | Sarcoma, Kaposi |
| 20 | Population |
| 20 | Botswana |
| 20 | AIDS Dementia Complex |
| 19 | gag Gene Products, Human Immunodeficiency Virus |
| 19 | Severity of Illness Index |
| 19 | Sensitivity and Specificity |
| 19 | Research Design |
| 19 | Population Dynamics |
| 19 | Mortality |
| 19 | Meningitis, Cryptococcal |
| 19 | HIV Antibodies |
| 19 | Cluster Analysis |
| 18 | Treatment Failure |
| 18 | Spouse Abuse |
| 18 | Sex Education |
| 18 | Sequence Analysis, DNA |
| 18 | Reverse Transcriptase Inhibitors |
| 18 | Proportional Hazards Models |
| 18 | Parents |
| 18 | Organophosphonates |
| 18 | Marital Status |
| 18 | Isoniazid |
| 18 | Income |
| 18 | Health Status Disparities |
| 18 | Health Care Surveys |
| 18 | Disclosure |
| 18 | Ambulatory Care |
| 18 | Adenine |
| 17 | Swaziland |
| 17 | Students |
| 17 | Sex Workers |
| 17 | Self Report |
| 17 | Rural Health Services |
| 17 | Research |
| 17 | Psychiatric Status Rating Scales |
| 17 | Neoplasms |
| 17 | Molecular Sequence Data |
| 17 | History, 20th Century |
| 17 | Family Planning Services |
| 17 | Employment |
| 17 | Community Networks |
| 17 | Community Health Workers |
| 17 | Child of Impaired Parents |
| 17 | Benzoxazines |
| 16 | Self Efficacy |
| 16 | Self Disclosure |
| 16 | Risk |
| 16 | Prognosis |
| 16 | Preventive Health Services |
| 16 | Pre-Exposure Prophylaxis |
| 16 | Practice Guidelines as Topic |
| 16 | Mutation |
| 16 | Mental Health |
| 16 | Maternal Health Services |
| 16 | Malnutrition |
| 16 | Heterosexuality |
| 16 | Genetic Variation |
| 16 | Education |
| 16 | Confidentiality |
| 16 | Body Mass Index |
| 16 | Anti-Infective Agents |
| 15 | Women |
| 15 | Voluntary Programs |
| 15 | Referral and Consultation |
| 15 | Program Development |
| 15 | Pregnant Women |
| 15 | National Health Programs |
| 15 | Immune Reconstitution Inflammatory Syndrome |
| 15 | HIV Seronegativity |
| 15 | Enzyme-Linked Immunosorbent Assay |
| 15 | Discrimination (Psychology) |
| 15 | Chronic Disease |
| 15 | Algorithms |
| 14 | Uterine Cervical Neoplasms |
| 14 | United Nations |
| 14 | Sputum |
| 14 | Sex Offenses |
| 14 | Seroepidemiologic Studies |
| 14 | Quality of Health Care |
| 14 | Professional-Patient Relations |
| 14 | Power (Psychology) |
| 14 | Peer Group |
| 14 | Needs Assessment |
| 14 | Namibia |
| 14 | Maternal Mortality |
| 14 | Kaplan-Meier Estimate |
| 14 | Hepatitis B |
| 14 | Health Resources |
| 14 | Evaluation Studies as Topic |
| 14 | Emigrants and Immigrants |
| 14 | Cross-Cultural Comparison |
| 14 | Cameroon |
| 14 | Biomarkers |
| 14 | Asia |
| 14 | Antifungal Agents |
| 14 | Alcoholism |
| 14 | Administration, Intravaginal |
| 13 | Viremia |
| 13 | Tuberculosis, Multidrug-Resistant |
| 13 | Sampling Studies |
| 13 | Religion |
| 13 | Policy Making |
| 13 | Lost to Follow-Up |
| 13 | Lamivudine |
| 13 | Health Facilities |
| 13 | Health Care Costs |
| 13 | HIV Protease Inhibitors |
| 13 | Fear |
| 13 | Depressive Disorder |
| 13 | Communicable Diseases |
| 13 | Child Welfare |
| 13 | CD8-Positive T-Lymphocytes |
| 12 | Women's Rights |
| 12 | Vaginal Creams, Foams, and Jellies |
| 12 | Trimethoprim, Sulfamethoxazole Drug Combination |
| 12 | Substance Abuse, Intravenous |
| 12 | Social Perception |
| 12 | Rwanda |
| 12 | Morbidity |
| 12 | Microbial Sensitivity Tests |
| 12 | Malaria |
| 12 | Intention |
| 12 | Human Rights |
| 12 | Hospitalization |
| 12 | History, 21st Century |
| 12 | Healthcare Disparities |
| 12 | Family Health |
| 12 | Diabetes Mellitus |
| 12 | Cryptococcosis |
| 12 | Cote d'Ivoire |
| 12 | Burkina Faso |
| 11 | Zidovudine |
| 11 | Urban Health |
| 11 | Universities |
| 11 | Thailand |
| 11 | Spouses |
| 11 | Social Conditions |
| 11 | Social Change |
| 11 | Psychometrics |
| 11 | Poverty Areas |
| 11 | Population Characteristics |
| 11 | Patient Selection |
| 11 | Outcome Assessment (Health Care) |
| 11 | HIV-2 |
| 11 | Gender Identity |
| 11 | Forecasting |
| 11 | Emigration and Immigration |
| 11 | Early Diagnosis |
| 11 | Domestic Violence |
| 11 | Disease Transmission, Infectious |
| 11 | Disabled Persons |
| 11 | Contraception |
| 11 | Confidence Intervals |
| 11 | Community Participation |
| 11 | Child Health Services |
| 11 | Behavior |
| 11 | Anti-Bacterial Agents |
| 10 | Social Behavior |
| 10 | Self Concept |
| 10 | Ritonavir |
| 10 | Polymorphism, Single Nucleotide |
| 10 | Polymorphism, Genetic |
| 10 | Parent-Child Relations |
| 10 | Organization and Administration |
| 10 | Models, Statistical |
| 10 | Lopinavir |
| 10 | Leadership |
| 10 | Hospitals, Teaching |
| 10 | Health Expenditures |
| 10 | Flow Cytometry |
| 10 | Financing, Organized |
| 10 | Fertility |
| 10 | Diarrhea |
| 10 | Democratic Republic of the Congo |
| 10 | Cooperative Behavior |
| 10 | Congresses as Topic |
| 10 | Cognitive Therapy |
| 10 | Child Mortality |
| 10 | Body Weight |
| 10 | Biomedical Research |
| 10 | Antibodies, Viral |
| 10 | Africa, Western |
| 9 | pol Gene Products, Human Immunodeficiency Virus |
| 9 | Travel |
| 9 | Survival Rate |
| 9 | Stress Disorders, Post-Traumatic |
| 9 | Stavudine |
| 9 | Sexuality |
| 9 | Sentinel Surveillance |
| 9 | Public Sector |
| 9 | Public Policy |
| 9 | Polymerase Chain Reaction |
| 9 | Palliative Care |
| 9 | Organizations |
| 9 | Nutritional Status |
| 9 | Neuropsychological Tests |
| 9 | Mozambique |
| 9 | Models, Organizational |
| 9 | Models, Biological |
| 9 | Military Personnel |
| 9 | Lesotho |
| 9 | Kidney Diseases |
| 9 | Informed Consent |
| 9 | Information Dissemination |
| 9 | Infant Mortality |
| 9 | Herpesvirus 8, Human |
| 9 | Hepatitis B Surface Antigens |
| 9 | Health Priorities |
| 9 | Health Planning |
| 9 | Geography |
| 9 | Genetic Predisposition to Disease |
| 9 | Drug Interactions |
| 9 | Double-Blind Method |
| 9 | Directive Counseling |
| 9 | Diet |
| 9 | Cryptococcus neoformans |
| 9 | Chi-Square Distribution |
| 9 | Cardiovascular Diseases |
| 9 | Anxiety Disorders |
| 9 | Analysis of Variance |
| 9 | Aging |
| 8 | Virus Replication |
| 8 | Violence |
| 8 | Vaginal Douching |
| 8 | Tertiary Care Centers |
| 8 | Social Problems |
| 8 | Self Care |
| 8 | Psychology |
| 8 | Postpartum Period |
| 8 | Patient Satisfaction |
| 8 | Pain |
| 8 | Obesity |
| 8 | Nurses |
| 8 | Molecular Epidemiology |
| 8 | Mass Media |
| 8 | Life Change Events |
| 8 | Interferon-gamma |
| 8 | India |
| 8 | Hypertension |
| 8 | Hospitals, University |
| 8 | Hospitals, Public |
| 8 | Hepatitis C |
| 8 | HIV Reverse Transcriptase |
| 8 | France |
| 8 | Family Relations |
| 8 | Factor Analysis, Statistical |
| 8 | European Continental Ancestry Group |
| 8 | Ethnic Groups |
| 8 | Endemic Diseases |
| 8 | Early Detection of Cancer |
| 8 | Drug Monitoring |
| 8 | Developed Countries |
| 8 | Delivery of Health Care, Integrated |
| 8 | DNA, Viral |
| 8 | Cytokines |
| 8 | Commerce |
| 8 | Clinical Protocols |
| 8 | Attitude |
| 8 | Anxiety |
| 8 | Anthropology, Cultural |
| 8 | Africa, Northern |
| 8 | Activities of Daily Living |
| 7 | env Gene Products, Human Immunodeficiency Virus |
| 7 | Widowhood |
| 7 | Weight Gain |
| 7 | Thinness |
| 7 | Syphilis |
| 7 | Social Responsibility |
| 7 | Smoking |
| 7 | Sexual Abstinence |
| 7 | Resilience, Psychological |
| 7 | Recurrence |
| 7 | Public Health Surveillance |
| 7 | Predictive Value of Tests |
| 7 | Postnatal Care |
| 7 | Post-Exposure Prophylaxis |
| 7 | Physician-Patient Relations |
| 7 | Mutation, Missense |
| 7 | Multilevel Analysis |
| 7 | Mining |
| 7 | Lymphocyte Activation |
| 7 | Health |
| 7 | Government Programs |
| 7 | Genetic Vectors |
| 7 | Faculty |
| 7 | Extensively Drug-Resistant Tuberculosis |
| 7 | Europe |
| 7 | Emtricitabine |
| 7 | Drug-Related Side Effects and Adverse Reactions |
| 7 | Disability Evaluation |
| 7 | Diagnostic Tests, Routine |
| 7 | Delayed Diagnosis |
| 7 | Databases, Factual |
| 7 | Continuity of Patient Care |
| 7 | Christianity |
| 7 | Chemoprevention |
| 7 | Cell Phones |
| 7 | Bereavement |
| 7 | Bayes Theorem |
| 7 | Awareness |
| 7 | Autopsy |
| 7 | Appointments and Schedules |
| 7 | Antiviral Agents |
| 7 | Antibodies, Neutralizing |
