RT Journal Article SR Electronic T1 To the Editor JF The Journal of Rheumatology JO J Rheumatol FD The Journal of Rheumatology SP 456 OP 456 DO 10.3899/jrheum.080943 VO 36 IS 2 A1 GREENWALD, ROBERT YR 2009 UL http://www.jrheum.org/content/36/2/456.1.abstract AB