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Kusunose K, Penn MS, Zhang Y, Cheng Y, Thomas JD, Marwick TH, Popović ZB.Kusunose K, et al.PLoS One. 2012;7(6):e40061. doi: 10.1371/journal.pone.0040061. Epub 2012 Jun 29.PLoS One. 2012.PMID: 22768220Free PMC article.