RT Journal Article SR Electronic T1 Rheumatology JF Annals of the Rheumatic Diseases JO Ann Rheum Dis FD BMJ Publishing Group Ltd and European League Against Rheumatism SP 887 OP 888 DO 10.1136/ard.49.11.887-b VO 49 IS 11 A1 Hickling, Peter YR 1990 UL http://ard.bmj.com/content/49/11/887.2.abstract AB