Letter: Long-term side effects of azathioprine.
D001172:Arthritis, Rheumatoid / Q000188:drug therapy*; D001379:Azathioprine / Q000009:adverse effects* / Q000627:therapeutic use; D005500:Follow-Up Studies; D006801:Humans; D007165:Immunosuppression Therapy / Q000009:adverse effects*; D008134:Long-Term Care; D008180:Lupus Erythematosus, Systemic / Q000188:drug therapy*; D009369:Neoplasms / Q000139:chemically induced*
D001379:Azathioprine