No abstract available
Publication types
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Comment
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Letter
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Research Support, Non-U.S. Gov't
MeSH terms
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Abortion, Legal / statistics & numerical data*
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Adult
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Cohort Studies
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Contraceptives, Oral, Synthetic / adverse effects*
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Desogestrel / adverse effects*
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Female
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Humans
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Norpregnenes / adverse effects*
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Pregnancy
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Pregnancy Rate*
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Risk Factors
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Thrombophlebitis / chemically induced*
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Thrombophlebitis / epidemiology
Substances
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Contraceptives, Oral, Synthetic
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Norpregnenes
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Gestodene
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Desogestrel