RT Journal Article SR Electronic T1 Empire Rheumatism Council JF Annals of the Rheumatic Diseases JO Ann Rheum Dis FD BMJ Publishing Group Ltd and European League Against Rheumatism SP 288 OP 297 DO 10.1136/ard.2.4.288 VO 2 IS 4 YR 1941 UL http://ard.bmj.com/content/2/4/288.abstract AB