No abstract available
MeSH terms
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Adolescent
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Contraception Behavior
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Contraceptive Devices / statistics & numerical data
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Contraceptives, Postcoital, Synthetic* / administration & dosage
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Emergency Medical Services
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Female
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Health Knowledge, Attitudes, Practice
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Humans
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Pregnancy
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Pregnancy in Adolescence* / statistics & numerical data
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United States / epidemiology
Substances
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Contraceptives, Postcoital, Synthetic