RT Journal Article SR Electronic T1 Correction for vol. 60, p. 934 JF Annals of the Rheumatic Diseases JO Ann Rheum Dis FD BMJ Publishing Group Ltd and European League Against Rheumatism SP 1161 OP 1161 DO 10.1136/ard.60.12.1161 VO 60 IS 12 YR 2001 UL http://ard.bmj.com/content/60/12/1161.abstract AB