title: A UK case-control study on the effect of parity and the oral contraceptive pill on the development of rheumatoid arthritis.
authors.affiliation: Department of Epidemiology, London Hospital, London School of Hygiene.
authors.forename: T D
authors.initials: TD
authors.lastname: Spector
authors.forename: E
authors.initials: E
authors.lastname: Roman
authors.forename: A J
authors.initials: AJ
authors.lastname: Silman
mesh_terms: D000328:Adult; D000368:Aged; D001172:Arthritis, Rheumatoid / Q000453:epidemiology* / Q000517:prevention & control; D016022:Case-Control Studies; D003278:Contraceptives, Oral, Hormonal / Q000008:administration & dosage / Q000009:adverse effects*; D005260:Female; D006801:Humans; D008875:Middle Aged; D016017:Odds Ratio; D010298:Parity; D011897:Random Allocation; D012307:Risk Factors; D006113:United Kingdom / Q000453:epidemiology
chemical_list: D003278:Contraceptives, Oral, Hormonal