RT Journal Article SR Electronic T1 Authors' reply JF Annals of the Rheumatic Diseases JO Ann Rheum Dis FD BMJ Publishing Group Ltd and European League Against Rheumatism SP 781 OP 781 DO 10.1136/ard.53.11.781-a VO 53 IS 11 A1 G D Pountain A1 B L Hazleman A1 M T Keogan A1 D L Brown YR 1994 UL http://ard.bmj.com/content/53/11/781.1.abstract AB