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Kleine-Brueggeney M, Gottfried A, Nabecker S, Greif R, Book M, Theiler L.Kleine-Brueggeney M, et al. Among authors: theiler l.BMC Anesthesiol. 2017 Sep 2;17(1):119. doi: 10.1186/s12871-017-0403-6.BMC Anesthesiol. 2017.PMID: 28865448Free PMC article.Clinical Trial.