Re: "Potential for bias in case-control studies of oral contraceptives and breast cancer".
Lund
E
E
D000328:Adult; D015982:Bias; D001943:Breast Neoplasms / Q000453:epidemiology* / Q000209:etiology; D016022:Case-Control Studies; D003276:Contraceptives, Oral / Q000009:adverse effects*; D005260:Female; D006801:Humans; D012307:Risk Factors
D003276:Contraceptives, Oral