1. Division of Functional Genome Analysis, Deutsches Krebsforschungszentrum (DKFZ), Heidelberg, Germany
2. Kurdistan Institution for Strategic Studies and Scientific Research, Kurdistan Region, Iraq
3. Chirurgische Klinik, Universitätsmedizin Mannheim, Theodor-Kutzer-Ufer 1-3, Mannheim, Germany
4. Department of General, Visceral and Transplantation Surgery, University of Heidelberg, Heidelberg, Germany