RT Journal Article SR Electronic T1 Enthesopathy index in ankylosing spondylitis. JF Annals of the Rheumatic Diseases JO Ann Rheum Dis FD BMJ Publishing Group Ltd and European League Against Rheumatism SP 717 DO 10.1136/ard.46.9.717-a VO 46 IS 9 A1 P T Dawes A1 T P Sheeran A1 E J Beswick A1 T E Hothersall YR 1987 UL http://ard.bmj.com/content/46/9/717.1.abstract AB