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Defining radiographic incidence and progression of knee osteoarthritis: suggested modifications of the Kellgren and Lawrence scale
  1. Correspondence to David T Felson, Clinical Epidemiology Research and Training Unit, Boston University School of Medicine, 715 Albany Street, A203, Boston, MA 02118, USA; dfelson{at}bu.edu
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Felson DT, Niu J, Guermazi A, et al
Defining radiographic incidence and progression of knee osteoarthritis: suggested modifications of the Kellgren and Lawrence scale

Publication history

  • Accepted July 5, 2011
  • First published September 8, 2011.
Online issue publication 
April 13, 2016

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