title: Oral contraceptives and primary liver cancer.
authors.affiliation: Mario Negri Institute for Pharmacological Research, Milan, Italy.
authors.forename: C
authors.initials: C
authors.lastname: La Vecchia
authors.forename: E
authors.initials: E
authors.lastname: Negri
authors.forename: F
authors.initials: F
authors.lastname: Parazzini
mesh_terms: D000328:Adult; D003276:Contraceptives, Oral / Q000009:adverse effects*; D005260:Female; D006801:Humans; D008113:Liver Neoplasms / Q000139:chemically induced*; D008875:Middle Aged
chemical_list: D003276:Contraceptives, Oral