RT Journal Article SR Electronic T1 Response to: ‘Synovitis in knee osteoarthritis: a precursor or concomitant feature?’ by Zeng et al JF Annals of the Rheumatic Diseases JO Ann Rheum Dis FD BMJ Publishing Group Ltd and European League Against Rheumatism SP e59 OP e59 DO 10.1136/annrheumdis-2015-207800 VO 74 IS 10 A1 Inoshi Atukorala A1 C Kent Kwoh A1 Ali Guermazi A1 Frank Roemer A1 Robert Boudreau A1 Michael J Hannon A1 David J Hunter YR 2015 UL http://ard.bmj.com/content/74/10/e59.abstract AB