title: Response to: 'Synovitis in knee osteoarthritis: a precursor or concomitant feature?' by Zeng et al.
authors.affiliation: Faculty of Medicine, Department of Clinical Medicine, University of Colombo, Colombo, Western Province, Sri Lanka.
authors.forename: Inoshi
authors.initials: I
authors.lastname: Atukorala
authors.affiliation: Department of Medicine/Rheumatology, University of Arizona, Tucson, Arizona, USA.
authors.forename: C Kent
authors.initials: CK
authors.lastname: Kwoh
authors.affiliation: Department of Radiology, Boston University School of Medicine, Boston, Massachusetts, USA.
authors.forename: Ali
authors.initials: A
authors.lastname: Guermazi
authors.affiliation: Boston University, Boston, Massachusetts, USA.
authors.forename: Frank
authors.initials: F
authors.lastname: Roemer
authors.affiliation: Department of Epidemiology, University of Pittsburgh, Pittsburgh, Pennsylvania, USA.
authors.forename: Robert
authors.initials: R
authors.lastname: Boudreau
authors.affiliation: Department of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA.
authors.forename: Michael J
authors.identifier: http://orcid.org/0000-0002-8382-8262
authors.initials: MJ
authors.lastname: Hannon
authors.affiliation: Department of Rheumatology, University of Sydney, St Leonards, New South Wales, Australia.
authors.forename: David J
authors.identifier: http://orcid.org/0000-0003-3197-752X
authors.initials: DJ
authors.lastname: Hunter
mesh_terms: D006801:Humans; D020370:Osteoarthritis, Knee / Q000150:complications*; D013585:Synovitis / Q000150:complications*
keywords: Knee Osteoarthritis; Osteoarthritis; Synovitis