title: Endometrial histology and vaginal cytology during oral contraception.
mesh_terms: D000293:Adolescent; D000328:Adult; D001706:Biopsy; D003276:Contraceptives, Oral / Q000008:administration & dosage / Q000494:pharmacology*; D004487:Edema / Q000473:pathology; D004717:Endometrium / Q000033:anatomy & histology / Q000187:drug effects*; D005260:Female; D006801:Humans; D008535:Megestrol / Q000494:pharmacology; D008656:Mestranol / Q000494:pharmacology; D014621:Vagina / Q000166:cytology / Q000187:drug effects*
chemical_list: D003276:Contraceptives, Oral; D008656:Mestranol; D008535:Megestrol