RT Journal Article SR Electronic T1 J Rheumatol 2009;36: pages 1769, 1785, 1792 JF The Journal of Rheumatology JO J Rheumatol FD The Journal of Rheumatology SP 681 OP 681 DO 10.3899/jrheum.090262C1 VO 37 IS 3 YR 2010 UL http://www.jrheum.org/content/37/3/681.3.abstract AB