1. Center of Orthopedics, Trauma Surgery, and Spinal Cord Injury, Heidelberg Trauma Research Group Heidelberg University Hospital Heidelberg Germany
2. Department of Diagnostic and Interventional Radiology Heidelberg University Hospital Heidelberg Germany
3. Institute of Diagnostic and Interventional Radiology, Pediatric Radiology, and Neuroradiology University Medical Center Rostock Rostock Germany
4. Institute of Medical Biometry, University of Heidelberg Heidelberg Germany
5. Aschaffenburg Trauma and Orthopedic Research Group, Center for Trauma Surgery Orthopedics, and Sports Medicine Aschaffenburg Germany