Re: "a case-control study of oral contraceptive use and incident breast cancer".
Shapiro
Samuel
S
D001943:Breast Neoplasms / Q000453:epidemiology*; D016022:Case-Control Studies; D003276:Contraceptives, Oral / Q000009:adverse effects*; D005260:Female; D006801:Humans; D015994:Incidence; D018570:Risk Assessment; D013019:South Africa / Q000453:epidemiology
D003276:Contraceptives, Oral