RT Journal Article SR Electronic T1 Correction JF The Journal of Rheumatology JO J Rheumatol FD The Journal of Rheumatology SP 1091 OP 1091 DO 10.3899/jrheum.080169C1 VO 36 IS 5 YR 2009 UL http://www.jrheum.org/content/36/5/1091.1.abstract AB