Comment on

• Treatment of rheumatoid arthritis with methotrexate alone, sulfasalazine and hydroxychloroquine, or a combination of all three medications.

  O'Dell JR, Haire CE, Erikson N, Drymalski W, Palmer W, Eckhoff PJ, Garwood V, Maloley P, Klassen LW, Wees S, Klein H, Moore GF. O'Dell JR, et al. N Engl J Med. 1996 May 16;334(20):1287-91. doi: 10.1056/NEJM199605163342002. N Engl J Med. 1996. PMID: 8609945 Clinical Trial.