Thema
Journal Article
48
Research Support, Non-U.S. Gov't
23
Measurement
21
Prevalence
21
Research Methodology
21
Diseases
19
prevalence
18
Biology
14
Demographic Factors
13
Developing Countries
13
Population
13
Population Characteristics
10
Research Support, N.I.H., Extramural
10
Americas
9
Physiology
9
Age Factors
8
Contraception
8
Family Planning
8
Africa
7
Africa South Of The Sahara
7
North America
7
Research Support, U.S. Gov't, P.H.S.
7
Risk Factors
7
Developed Countries
6
Examinations And Diagnoses
6
Incidence
6
Comparative Study
5
Data Collection
5
English Speaking Africa
5
Epidemiologic Methods
5
Health
5
Hiv Infections
5
Infections
5
Northern America
5
Research Report
5
Viral Diseases
5
Barrier Methods
4
Behavior
4
Cancer
4
Child
4
Contraceptive Methods
4
Data Analysis
4
Economic Factors
4
Laboratory Examinations And Diagnoses
4
Population Dynamics
4
Studies
4
United States
4
Youth
4
Acquired Immunodeficiency Syndrome
3
Comparative Studies
3
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