1 CHERH, Institute for Epidemiology, Social Medicine, and Health Systems Research, Hannover Medical School, 30625 Hannover, Germany; Management Team of the Transplant Center, Hannover Medical School, 30625 Hannover, Germany. Electronic address: [email protected].
2 CHERH, Institute for Epidemiology, Social Medicine, and Health Systems Research, Hannover Medical School, 30625 Hannover, Germany.
3 CHERH, Institute for Epidemiology, Social Medicine, and Health Systems Research, Hannover Medical School, 30625 Hannover, Germany; General, Visceral and Transplant Surgery, and Transplant Center Graz, Medical University of Graz, Graz, Austria.