No abstract available
MeSH terms
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Adolescent
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Causality
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Community Health Services / organization & administration*
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Family / psychology
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Female
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Humans
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Incidence
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Minority Groups
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Nursing Care / organization & administration*
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Peer Group
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Politics
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Pregnancy
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Pregnancy Outcome
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Pregnancy in Adolescence / psychology
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Pregnancy in Adolescence / statistics & numerical data*
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Primary Prevention / organization & administration*
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Residence Characteristics
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Sexual Behavior
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Social Class
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Social Problems
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Social Values
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Socioeconomic Factors
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United States / epidemiology