RT Journal Article SR Electronic T1 New Zealand Rheumatism Association JF Annals of the Rheumatic Diseases JO Ann Rheum Dis FD BMJ Publishing Group Ltd and European League Against Rheumatism SP 90 OP 90 DO 10.1136/ard.20.1.90 VO 20 IS 1 YR 1961 UL http://ard.bmj.com/content/20/1/90.abstract AB