Letter: Drugs for rheumatoid arthritis.
D001172:Arthritis, Rheumatoid / Q000188:drug therapy*; D001379:Azathioprine / Q000627:therapeutic use; D003520:Cyclophosphamide / Q000627:therapeutic use; D006046:Gold / Q000627:therapeutic use; D006801:Humans; D013223:Statistics as Topic
D006046:Gold; D003520:Cyclophosphamide; D001379:Azathioprine