title: Oral contraceptives and the risk of rheumatoid arthritis: the great transatlantic divide?
authors.affiliation: Department of Clinical Epidemiology, Leiden, The Netherland.
authors.forename: J P
authors.initials: JP
authors.lastname: Vandenbroucke
mesh_terms: D001172:Arthritis, Rheumatoid / Q000453:epidemiology / Q000209:etiology*; D003278:Contraceptives, Oral, Hormonal / Q000009:adverse effects*; D005060:Europe / Q000453:epidemiology; D005260:Female; D006801:Humans; D015233:Models, Statistical; D012307:Risk Factors; D014481:United States / Q000453:epidemiology
chemical_list: D003278:Contraceptives, Oral, Hormonal