RT Journal Article SR Electronic T1 Low-dose methotrexate: anti-inflammatory or immunosuppressive? JF Cleveland Clinic Journal of Medicine JO Cleve Clin J Med FD Cleveland Clinic SP 245 OP 246 VO 57 IS 3 A1 Olsen, Nancy YR 1990 UL http://www.ccjm.org/content/57/3/245.abstract AB