RT Journal Article SR Electronic T1 Methotrexate in the treatment of rheumatoid arthritis JF Cleveland Clinic Journal of Medicine JO Cleve Clin J Med FD Cleveland Clinic SP 305 OP 309 VO 47 IS 4 A1 Wilke, William S. A1 Calabrese, Leonard H. A1 Scherbel, Arthur L. YR 1980 UL http://www.ccjm.org/content/47/4/305.abstract AB