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Subject
- Fertility, Human38
- Childbirth17
- Birth control10
- Demographic surveys9
- Health surveys9
- Statistics, Vital9
- Human services8
- Health and hygiene6
- Mortality5
- Population5
- Birth Rate4
- Children4
- Ecology4
- Effect of human beings on3
- Environmental aspects3
- Human reproductive technology3
- Marriage3
- Service industries3
- Social conditions3
- Statistics, Medical3