1. Department of Trauma and Orthopedic Surgery, Cologne-Merheim Medical Center (CMMC), University Witten/Herdecke, 51109 Cologne, Germany
2. Special Air Mission Wing, Federal Ministry of Defence, 51147 Cologne, Germany
3. Department of Anesthesiology, Intensive Care, Emergency Medicine and Pain Therapy, Bundeswehr Central Hospital, 56072 Koblenz, Germany
4. Experimental Aerospace Medicine Research, German Air Force Centre of Aerospace Medicine, 51147 Cologne, Germany
5. Department of Occupational Medicine, Medical Faculty, Otto von Guericke University, 39106 Magdeburg, Germany
6. Department of Surgery, Serviço Regional de Saúde da Madeira, 6180 Funchal, Portugal
7. Department of Trauma Surgery, Hospital of the Augustinerinnen, 50678 Cologne, Germany