RT Journal Article SR Electronic T1 Can Methotrexate Prevent Knee Arthroplasties in Patients with Rheumatoid Arthritis? JF The Journal of Rheumatology JO J Rheumatol FD The Journal of Rheumatology SP 2217 OP 2218 DO 10.3899/jrheum.151104 VO 42 IS 12 A1 JOEL M. KREMER YR 2015 UL http://www.jrheum.org/content/42/12/2217.abstract AB