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Joannidis M, Kountchev J, Rauchenzauner M, Schusterschitz N, Ulmer H, Mayr A, Bellmann R.Joannidis M, et al. Among authors: bellmann r.Intensive Care Med. 2007 Sep;33(9):1571-9. doi: 10.1007/s00134-007-0719-7. Epub 2007 Jun 12.Intensive Care Med. 2007.PMID: 17563874Clinical Trial.