1. HTRG - Heidelberg Trauma Research Group, Center of Orthopedics, Traumatology, and Spinal Cord Injury; Heidelberg University Hospital, Schlierbacher Landstraße 200a; Heidelberg 69118 Germany
2. Clinic for Trauma Surgery, Orthopedic Surgery, and Hand Surgery; SLK-Kliniken Heilbronn GmbH, Am Gesundbrunnen 20-26; Heilbronn 74078 Germany
3. ATORG - Aschaffenburg Trauma and Orthopedic Research Group, Clinic for Orthopedic Surgery, Trauma Surgery, and Hand Surgery, Klinikum Aschaffenburg-Alzenau, Am Hasenkopf 1; Aschaffenburg 63739 Germany