No abstract available
MeSH terms
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Adult
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Cervix Mucus / drug effects
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Contraceptives, Oral*
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Endometrium / drug effects
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Ethinyl Estradiol / administration & dosage*
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Female
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Humans
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Progestins / administration & dosage*
Substances
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Contraceptives, Oral
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Progestins
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Ethinyl Estradiol