RT Journal Article SR Electronic T1 Methotrexate in the Treatment of Arthritis and Connective Tissue Disease JF Cleveland Clinic Journal of Medicine JO Cleve Clin J Med FD Cleveland Clinic SP 279 OP 279 VO 55 IS 3 A1 Graciela Alarcön A1 Sarahl Morgan A1 Ronald T. Acton A1 Bruce O. Barger A1 William J. Koopman YR 1988 UL http://www.ccjm.org/content/55/3/279.1.abstract AB