1. Department of Experimental Surgery, University Medical Center Mannheim, University of Heidelberg, 68167 Mannheim, Germany.
2. Clinical Cooperation Unit Molecular Oncology of Solid Tumors, German Cancer Research Center (DKFZ), 69120 Heidelberg, Germany.
3. Department of Radiation Oncology, University Medical Center Mannheim, University of Heidelberg, 68167 Mannheim, Germany.
4. Department of Transplantation Immunology, University of Heidelberg, 68167 Mannheim, Germany.
5. Department of Biostatistics, German Cancer Research Center (DKFZ), 69120 Heidelberg, Germany.
6. Medical Research Center (ZMF), University Medical Center Mannheim, University of Heidelberg, 68167 Mannheim, Germany.
7. Center for Tumor Diagnostics and Therapy, Paracelsus Hospital, 49076 Osnabrueck, Germany.