title: Author response: oral contraceptives and Crohn's disease.
authors.affiliation: Division of Gastroenterology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, USA.
authors.forename: Hamed
authors.initials: H
authors.lastname: Khalili
authors.affiliation: Division of Gastroenterology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, USA Channing Laboratory, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts, USA.
authors.forename: Andrew T
authors.initials: AT
authors.lastname: Chan
mesh_terms: D003093:Colitis, Ulcerative / Q000139:chemically induced*; D003276:Contraceptives, Oral / Q000009:adverse effects*; D003424:Crohn Disease / Q000139:chemically induced*; D005260:Female; D006801:Humans; D017584:Reproductive History
chemical_list: D003276:Contraceptives, Oral
keywords: CROHN'S DISEASE; EPIDEMIOLOGY