title: The absence of an association between oral contraceptive use and ulcerative colitis in patients.
authors.forename: B A
authors.initials: BA
authors.lastname: Lashner
authors.forename: S B
authors.initials: SB
authors.lastname: Hanauer
mesh_terms: D003093:Colitis, Ulcerative / Q000209:etiology*; D003276:Contraceptives, Oral; D005260:Female; D006801:Humans
chemical_list: D003276:Contraceptives, Oral