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Subjects
- Population Dynamics[remove]25
- United States8
- Humans6
- Forecasting5
- Aged4
- Contraception4
- New England4
- Aging3
- Health Services Needs and Demand -- statistics & numerical data3
- Population Control3
- Age Distribution2
- Birth Rate2
- Fertility2
- Health Manpower -- statistics & numerical data2
- Health Policy2
- Health Services for the Aged2
- Health Status2
- Socioeconomic Factors2
- Abortion, Criminal1
- Activities of Daily Living1