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Kaufmann A, Kraft B, Michalek-Sauberer A, Weindlmayr M, Kress HG, Steinboeck F, Weigl LG.Kaufmann A, et al. Among authors: kress hg.Anesth Analg. 2012 May;114(5):1017-25. doi: 10.1213/ANE.0b013e31824a95ad. Epub 2012 Mar 13.Anesth Analg. 2012.PMID: 22415532