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Cavus E, Janssen S, Reifferscheid F, Caliebe A, Callies A, von der Heyden M, Knacke PG, Doerges V.Cavus E, et al. Among authors: knacke pg.Anesth Analg. 2018 May;126(5):1565-1574. doi: 10.1213/ANE.0000000000002735.Anesth Analg. 2018.PMID: 29239965Clinical Trial.