title: Oral-contraceptive use, anovulatory action, and risk of epithelial ovarian cancer.
authors.forename: H A
authors.initials: HA
authors.lastname: Risch
mesh_terms: D003276:Contraceptives, Oral / Q000627:therapeutic use*; D005260:Female; D006801:Humans; D010051:Ovarian Neoplasms / Q000517:prevention & control*; D010060:Ovulation / Q000187:drug effects / Q000502:physiology*; D010298:Parity; D012307:Risk Factors
chemical_list: D003276:Contraceptives, Oral