PT - JOURNAL ARTICLE ED - , TI - Corrections AID - 10.1136/ard.2009.123919corr1 DP - 2011 Jul 01 TA - Annals of the Rheumatic Diseases PG - 1349--1349 VI - 70 IP - 7 4099 - http://ard.bmj.com/content/70/7/1349.4.short 4100 - http://ard.bmj.com/content/70/7/1349.4.full SO - Ann Rheum Dis2011 Jul 01; 70