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Engelhardt M, Zeiser R, Ihorst G, Finke J, Müller CI.Engelhardt M, et al. Among authors: ihorst g.J Cancer Res Clin Oncol. 2007 Jan;133(1):1-11. doi: 10.1007/s00432-006-0137-1. Epub 2006 Jul 12.J Cancer Res Clin Oncol. 2007.PMID: 16835746Clinical Trial.