Thema
Journal Article
2.345
Educational Status
2.178
Socioeconomic Factors
1.772
Population
1.751
Economic Factors
1.740
Demographic Factors
1.718
Socioeconomic Status
1.621
Developing Countries
1.420
Population Characteristics
1.323
Population Dynamics
1.278
Research Methodology
926
Age Factors
871
Developed Countries
791
Asia
736
Fertility
635
Americas
604
Behavior
521
Family And Household
511
Family Planning
511
North America
499
Studies
488
Health
450
Family Characteristics
441
Geographic Factors
441
Nuptiality
417
Northern America
395
Ethnic Groups
390
Macroeconomic Factors
377
Fertility Measurements
367
Mortality
367
United States
359
Employment Status
348
Income
347
Research Report
342
Human Resources
330
Southern Asia
323
Cultural Background
320
Migration
320
Contraception
317
Africa
315
Spatial Distribution
312
Rural Population
310
Marital Status
303
Psychological Factors
303
Urban Population
296
Educational status
285
English Abstract
263
Contraceptive Usage
262
Religion
257
Research Support, Non-U.S. Gov't
244
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