title: [Sister-chromatid exchange studies in women with long-term use of the oral contraceptive pills megestrol acetate compositas].
mesh_terms: D000328:Adult; D003280:Contraceptives, Oral, Synthetic / Q000008:administration & dosage / Q000009:adverse effects*; D004997:Ethinyl Estradiol / Q000008:administration & dosage; D005260:Female; D006801:Humans; D008535:Megestrol / Q000008:administration & dosage / Q000009:adverse effects / Q000031:analogs & derivatives*; D019290:Megestrol Acetate; D011247:Pregnancy; D012854:Sister Chromatid Exchange / Q000187:drug effects*
chemical_list: D003280:Contraceptives, Oral, Synthetic; D004997:Ethinyl Estradiol; D008535:Megestrol; D019290:Megestrol Acetate