1 Department of General, Visceral, Tumor and Transplantation Surgery, University Hospital of Cologne, Cologne, Germany.
2 Department of Experimental Oncology, Institute of Oncology Ljubljana, Ljubljana, Slovenia.
3 Institute of Molecular Biology and Biophysics Federal Research Center of Fundamental and Translational Medicine (FRC FTM), Timakova, Novosibirsk, Russia.
4 Laboratory for Experimental and Translational Research on Radiation Oncology (EXTRO-Lab), Department of Therapeutic Radiology and Oncology, Innsbruck Medical University, Innsbruck, Austria.