title: Contraceptives, pregnancy, and RA.
authors.affiliation: ARC Epidemiology Unit, School of Epidemiology and Health Sciences, University of Manchester, Manchester M13 9PT, UK. alan.silman@man.ac.uk
authors.forename: A J
authors.initials: AJ
authors.lastname: Silman
mesh_terms: D001172:Arthritis, Rheumatoid / Q000139:chemically induced / Q000517:prevention & control; D003278:Contraceptives, Oral, Hormonal / Q000009:adverse effects / Q000627:therapeutic use; D004198:Disease Susceptibility; D005260:Female; D006801:Humans; D010298:Parity; D011247:Pregnancy; D011248:Pregnancy Complications / Q000139:chemically induced / Q000517:prevention & control; D011379:Prognosis
chemical_list: D003278:Contraceptives, Oral, Hormonal