title: Ovarian changes during progestogen amenorrhoea.
mesh_terms: D000328:Adult; D000568:Amenorrhea / Q000139:chemically induced*; D001706:Biopsy; D003276:Contraceptives, Oral / Q000009:adverse effects*; D004967:Estrogens / Q000096:biosynthesis / Q000502:physiology; D005260:Female; D006801:Humans; D008525:Medroxyprogesterone / Q000009:adverse effects; D009640:Norethindrone / Q000009:adverse effects; D010048:Ovarian Cysts / Q000139:chemically induced / Q000473:pathology; D006080:Ovarian Follicle / Q000187:drug effects; D010053:Ovary / Q000033:anatomy & histology* / Q000187:drug effects / Q000473:pathology
chemical_list: D003276:Contraceptives, Oral; D004967:Estrogens; D008525:Medroxyprogesterone; D009640:Norethindrone