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Frankle WG, Cho RY, Mason NS, Chen CM, Himes M, Walker C, Lewis DA, Mathis CA, Narendran R.Frankle WG, et al.PLoS One. 2012;7(2):e32443. doi: 10.1371/journal.pone.0032443. Epub 2012 Feb 27.PLoS One. 2012.PMID: 22384252Free PMC article.