Oral contraceptives and venous thromboembolism.
Roke
C
C
D015982:Bias; D003276:Contraceptives, Oral / Q000009:adverse effects*; D005193:Family Planning Services; D005260:Female; D006801:Humans; D007258:Informed Consent; D012307:Risk Factors; D012955:Societies, Medical; D013923:Thromboembolism / Q000139:chemically induced*
D003276:Contraceptives, Oral