title: Letter: Liver hamartomas in patients on oral contraceptives.
mesh_terms: D000328:Adult; D003276:Contraceptives, Oral / Q000009:adverse effects*; D005260:Female; D006406:Hematoma / Q000150:complications; D006801:Humans; D008107:Liver Diseases / Q000150:complications; D008113:Liver Neoplasms / Q000139:chemically induced* / Q000150:complications / Q000601:surgery; D008656:Mestranol / Q000009:adverse effects*; D009640:Norethindrone / Q000009:adverse effects*
chemical_list: D003276:Contraceptives, Oral; D008656:Mestranol; D009640:Norethindrone