title: Oral contraceptives and breakthrough bleeding: what patients need to know.
authors.affiliation: University of Pittsburgh, Magee-Womens Hospital, 300 Halket Street, Pittsburgh, PA 15213-3180, USA. plohr@mail.magee.edu
authors.forename: Patricia A
authors.initials: PA
authors.lastname: Lohr
authors.forename: Mitchell D
authors.initials: MD
authors.lastname: Creinin
mesh_terms: D003277:Contraceptives, Oral, Combined / Q000494:pharmacology*; D004347:Drug Interactions; D004717:Endometrium / Q000187:drug effects; D004967:Estrogens / Q000494:pharmacology; D005260:Female; D006801:Humans; D008796:Metrorrhagia / Q000139:chemically induced* / Q000517:prevention & control; D011127:Polyps / Q000150:complications; D011372:Progestins / Q000494:pharmacology; D012907:Smoking / Q000009:adverse effects; D016312:Treatment Refusal; D014594:Uterine Neoplasms / Q000150:complications
chemical_list: D003277:Contraceptives, Oral, Combined; D004967:Estrogens; D011372:Progestins