PT - JOURNAL ARTICLE ED - , TI - Correction DP - 2009 Feb 01 TA - Annals of the Rheumatic Diseases PG - 296--296 VI - 68 IP - 2 4099 - http://ard.bmj.com/content/68/2/296.short 4100 - http://ard.bmj.com/content/68/2/296.full SO - Ann Rheum Dis2009 Feb 01; 68