Comment on the article by Hazes et al: Reduction of the risk of rheumatoid arthritis among women who take oral contraceptives.
McGrath
H
H
D001172:Arthritis, Rheumatoid / Q000517:prevention & control*; D003276:Contraceptives, Oral / Q000627:therapeutic use*; D005260:Female; D006801:Humans; D012307:Risk Factors
D003276:Contraceptives, Oral