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Cooper DB, Vanderploeg RD, Armistead-Jehle P, Lewis JD, Bowles AO.Cooper DB, et al.J Rehabil Res Dev. 2014;51(7):1023-34. doi: 10.1682/JRRD.2013.05.0140.J Rehabil Res Dev. 2014.PMID: 25479335Free article.