No abstract available
MeSH terms
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Contraceptive Agents, Female / administration & dosage*
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Contraceptives, Oral, Synthetic / administration & dosage*
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Contraceptives, Postcoital / administration & dosage*
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Female
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Humans
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Levonorgestrel / administration & dosage*
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Menstrual Cycle*
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Ovulation*
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Pregnancy
Substances
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Contraceptive Agents, Female
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Contraceptives, Oral, Synthetic
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Contraceptives, Postcoital
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Levonorgestrel