RT Journal Article SR Electronic T1 Methotrexate in rheumatoid arthritis JF Cleveland Clinic Journal of Medicine JO Cleve Clin J Med FD Cleveland Clinic SP 219 OP 219 VO 52 IS 2 A1 Clough, John D. YR 1985 UL http://www.ccjm.org/content/52/2/219.abstract AB