RT Journal Article SR Electronic T1 Heberden Society JF Annals of the Rheumatic Diseases JO Ann Rheum Dis FD BMJ Publishing Group Ltd and European League Against Rheumatism SP 478 OP 483 DO 10.1136/ard.36.5.478 VO 36 IS 5 YR 1977 UL http://ard.bmj.com/content/36/5/478.abstract AB