RT Journal Article SR Electronic T1 Does excess weight cause osteoarthritis and, if so, why? JF Annals of the Rheumatic Diseases JO Ann Rheum Dis FD BMJ Publishing Group Ltd and European League Against Rheumatism SP 668 OP 670 DO 10.1136/ard.55.9.668 VO 55 IS 9 A1 D T Felson YR 1996 UL http://ard.bmj.com/content/55/9/668.abstract AB