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Roy JS, Ma B, Macdermid JC, Woodhouse LJ.Roy JS, et al.Sports Med Arthrosc Rehabil Ther Technol. 2011 Jan 11;3(1):1. doi: 10.1186/1758-2555-3-1.Sports Med Arthrosc Rehabil Ther Technol. 2011.PMID: 21223588Free PMC article.