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Al-Alwan A, Ehlenbach WJ, Menon PR, Young MP, Stapleton RD.Al-Alwan A, et al. Among authors: ehlenbach wj.Intensive Care Med. 2014 Apr;40(4):556-63. doi: 10.1007/s00134-014-3247-2. Epub 2014 Feb 26.Intensive Care Med. 2014.PMID: 24570267Free PMC article.