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Klein KU, Schramm P, Glaser M, Reisch R, Tresch A, Werner C, Engelhard K.Klein KU, et al. Among authors: schramm p.J Neurosurg Anesthesiol. 2010 Jan;22(1):38-45. doi: 10.1097/ANA.0b013e3181bea439.J Neurosurg Anesthesiol. 2010.PMID: 19816204Clinical Trial.
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Schramm P, Closhen D, Wojciechowski J, Berres M, Klein KU, Bodenstein M, Werner C, Engelhard K.Schramm P, et al.Can J Anaesth. 2013 Jun;60(6):564-9. doi: 10.1007/s12630-013-9912-z. Epub 2013 Mar 28.Can J Anaesth. 2013.PMID: 23536386Clinical Trial.