Thema
United States
Journal Article
112
North America
95
Americas
93
Developed Countries
93
Northern America
93
Population
79
Demographic Factors
77
Population Dynamics
67
Mortality
59
Population Characteristics
49
Research Methodology
40
Ethnic Groups
34
Research Support, U.S. Gov't, P.H.S.
33
Age Factors
32
Cultural Background
31
Family Planning
30
Biology
29
Causes Of Death
26
Health
26
Differential Mortality
25
Diseases
21
Economic Factors
21
Behavior
19
Physiology
19
Socioeconomic Factors
19
Blacks
17
Comparative Study
17
Research Report
17
Delivery Of Health Care
16
Whites
16
Infant Mortality
15
Fertility Control, Postconception
14
Sex Factors
14
Studies
14
Body Weight
13
Developing Countries
12
Health Services
12
Organization And Administration
12
Birth Weight
11
Education
11
Family Planning Programs
11
Geographic Factors
11
Programs
11
Psychological Factors
11
Socioeconomic Status
11
California
10
Contraception
10
Comparative Studies
9
Data Collection
9
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