No abstract available
Publication types
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Clinical Trial
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Controlled Clinical Trial
MeSH terms
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Breast Feeding
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Contraceptives, Oral / pharmacology*
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Female
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Humans
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Infant
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Infant Nutritional Physiological Phenomena
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Lactation / drug effects*
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Mestranol / pharmacology*
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Norethindrone / pharmacology*
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Placebos
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Pregnancy
Substances
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Contraceptives, Oral
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Placebos
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Mestranol
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Norethindrone