RT Journal Article SR Electronic T1 Use of US Veterans Affairs Administrative Databases to Study Outcomes in Patients with Rheumatoid Arthritis JF The Journal of Rheumatology JO J Rheumatol FD The Journal of Rheumatology SP 1084 OP 1084 DO 10.3899/jrheum.081055 VO 36 IS 5 A1 PRABHA RANGANATHAN A1 ANGELIQUE L. ZERINGUE A1 JAY R. McDONALD YR 2009 UL http://www.jrheum.org/content/36/5/1084.1.abstract AB