title: Hormone balance of oral contraceptives.
mesh_terms: D001706:Biopsy; D003276:Contraceptives, Oral / Q000494:pharmacology*; D004717:Endometrium / Q000187:drug effects / Q000473:pathology; D004848:Epithelium / Q000473:pathology; D004997:Ethinyl Estradiol / Q000494:pharmacology; D005260:Female; D006801:Humans; D006965:Hyperplasia; D008598:Menstruation / Q000187:drug effects; D008656:Mestranol / Q000494:pharmacology
chemical_list: D003276:Contraceptives, Oral; D004997:Ethinyl Estradiol; D008656:Mestranol