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Yang YS, Koontz AM, Hsiao YH, Pan CT, Chang JJ.Yang YS, et al.Int J Environ Res Public Health. 2021 Jul 29;18(15):8016. doi: 10.3390/ijerph18158016.Int J Environ Res Public Health. 2021.PMID: 34360309Free PMC article.
Koontz AM, Cooper RA, Boninger ML, Yang Y, Impink BG, van der Woude LH.Koontz AM, et al.J Rehabil Res Dev. 2005 Jul-Aug;42(4):447-58. doi: 10.1682/jrrd.2004.08.0106.J Rehabil Res Dev. 2005.PMID: 16320141Free article.
Koontz AM, Yang Y, Price R, Tolerico ML, DiGiovine CP, Sisto SA, Cooper RA, Boninger ML.Koontz AM, et al.J Rehabil Res Dev. 2007;44(3):449-58. doi: 10.1682/jrrd.2006.05.0048.J Rehabil Res Dev. 2007.PMID: 18247241Free article.