title: Do oral contraceptives prevent rheumatoid arthritis?
mesh_terms: D000293:Adolescent; D000328:Adult; D001172:Arthritis, Rheumatoid / Q000517:prevention & control*; D003276:Contraceptives, Oral / Q000627:therapeutic use*; D005260:Female; D006801:Humans; D008875:Middle Aged; D012306:Risk
chemical_list: D003276:Contraceptives, Oral