RT Journal Article SR Electronic T1 Ankylosing spondylitis and epidemic Reiter's syndrome: genetics and environment [Proceedings]. JF Annals of the Rheumatic Diseases JO Ann Rheum Dis FD BMJ Publishing Group Ltd and European League Against Rheumatism SP 287 DO 10.1136/ard.35.3.287-a VO 35 IS 3 A1 A Calin A1 J F Fries YR 1976 UL http://ard.bmj.com/content/35/3/287.1.abstract AB