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Fuentes D, Feng Y, Elliott A, Shetty A, McNichols RJ, Oden JT, Stafford RJ.Fuentes D, et al.IEEE Trans Biomed Eng. 2010 May;57(5):1024-30. doi: 10.1109/TBME.2009.2037733. Epub 2010 Feb 5.IEEE Trans Biomed Eng. 2010.PMID: 20142153Free PMC article.