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Hoyer EH, Needham DM, Miller J, Deutschendorf A, Friedman M, Brotman DJ.Hoyer EH, et al.Arch Phys Med Rehabil. 2013 Oct;94(10):1951-8. doi: 10.1016/j.apmr.2013.05.028. Epub 2013 Jun 26.Arch Phys Med Rehabil. 2013.PMID: 23810355Free PMC article.