No abstract available
MeSH terms
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Contraception, Postcoital / methods*
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Contraceptive Agents, Female / pharmacology*
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Female
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Humans
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Intrauterine Devices, Copper*
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Levonorgestrel / pharmacology*
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Male
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Norpregnadienes / pharmacology*
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Pregnancy
Substances
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Contraceptive Agents, Female
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Norpregnadienes
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Levonorgestrel