Data from transnational study of oral contraceptives have been misused.
Spitzer
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D003276:Contraceptives, Oral / Q000009:adverse effects*; D016903:Drug Monitoring; D005260:Female; D006801:Humans; D012307:Risk Factors; D013923:Thromboembolism / Q000139:chemically induced*; D006113:United Kingdom
D003276:Contraceptives, Oral