[1] Hannover Med Sch, Integrated Res & Treatment Ctr Transplantat IFB T, Core Facil Qual Management & Hlth Technol Assesme, Carl Neuberg Str 1, D-30625 Hannover, Germany
[2] Fed Armed Forces Hosp Westerstede, Dept Trauma & Orthopaed Surg, Westerstede, Germany
[3] Hannover Med Sch, Dept Gen Visceral & Transplant Surg, Hannover, Germany
[4] Univ Med Ctr Schleswig Holstein UKSH, Dept Gen Visceral Thorac Transplantat & Pediat Su, Kiel Campus, Kiel, Germany