title: Letter: Sequential oral contraceptives.
mesh_terms: D000230:Adenocarcinoma / Q000139:chemically induced*; D003276:Contraceptives, Oral / Q000009:adverse effects*; D003279:Contraceptives, Oral, Sequential / Q000009:adverse effects*; D005260:Female; D006801:Humans; D006965:Hyperplasia / Q000139:chemically induced*; D014591:Uterine Diseases / Q000139:chemically induced*; D014594:Uterine Neoplasms / Q000139:chemically induced*
chemical_list: D003276:Contraceptives, Oral; D003279:Contraceptives, Oral, Sequential