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Nosek MA, Hughes RB, Petersen NJ, Taylor HB, Robinson-Whelen S, Byrne M, Morgan R.Nosek MA, et al.Arch Phys Med Rehabil. 2006 Mar;87(3):320-7. doi: 10.1016/j.apmr.2005.11.003.Arch Phys Med Rehabil. 2006.PMID: 16500164
Singh H, Fox SA, Petersen NJ, Shethia A, Street RL Jr.Singh H, et al.J Med Internet Res. 2009 Jun 16;11(2):e18. doi: 10.2196/jmir.1143.J Med Internet Res. 2009.PMID: 19632972Free PMC article.