No abstract available
MeSH terms
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Contraceptives, Oral, Combined* / adverse effects
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Counseling
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Drug Combinations
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Drug Utilization
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Ethisterone / adverse effects
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Ethisterone / analogs & derivatives*
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Female
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Humans
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Norgestrel / adverse effects
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Norgestrel / analogs & derivatives*
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Oximes / adverse effects
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Physician-Patient Relations
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Practice Patterns, Physicians'
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Risk Assessment
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United States
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United States Food and Drug Administration
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Venous Thrombosis / chemically induced
Substances
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Contraceptives, Oral, Combined
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Drug Combinations
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Oximes
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Norgestrel
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Ethisterone
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norelgestromin