title: Gynecology case challenge: vaginal bleeding in a woman taking an injectable contraceptive.
authors.affiliation: Department of Obstetrics and Gynecology, Florida Hospital Family Practice Residency, Orlando, Fla.
authors.forename: D A
authors.initials: DA
authors.lastname: Hill
mesh_terms: D000328:Adult; D003271:Contraceptive Agents, Female / Q000009:adverse effects; D004966:Estrogens, Conjugated (USP) / Q000627:therapeutic use; D005260:Female; D006801:Humans; D017258:Medroxyprogesterone Acetate / Q000009:adverse effects*; D011127:Polyps / Q000150:complications* / Q000601:surgery; D014463:Ultrasonography; D014592:Uterine Hemorrhage / Q000000981:diagnostic imaging / Q000188:drug therapy / Q000209:etiology*; D014594:Uterine Neoplasms / Q000150:complications* / Q000601:surgery; D014599:Uterus / Q000000981:diagnostic imaging
chemical_list: D003271:Contraceptive Agents, Female; D004966:Estrogens, Conjugated (USP); D017258:Medroxyprogesterone Acetate