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Smuder AJ, Hudson MB, Nelson WB, Kavazis AN, Powers SK.Smuder AJ, et al. Among authors: powers sk.Crit Care Med. 2012 Mar;40(3):927-34. doi: 10.1097/CCM.0b013e3182374a84.Crit Care Med. 2012.PMID: 22080641Free PMC article.