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Grotemeyer D, Duran M, Park EJ, Hoffmann N, Blondin D, Iskandar F, Balzer KM, Sandmann W.Grotemeyer D, et al. Among authors: balzer km.Langenbecks Arch Surg. 2009 Nov;394(6):1093-100. doi: 10.1007/s00423-009-0482-z. Epub 2009 Mar 12.Langenbecks Arch Surg. 2009.PMID: 19280216