PT - JOURNAL ARTICLE ED - , TI - Correction AID - 10.1136/ard.2009.108555corr1 DP - 2010 Feb 01 TA - Annals of the Rheumatic Diseases PG - 336--336 VI - 69 IP - 2 4099 - http://ard.bmj.com/content/69/2/336.short 4100 - http://ard.bmj.com/content/69/2/336.full SO - Ann Rheum Dis2010 Feb 01; 69