1. Department of Orthopedic and Trauma Surgery, Klinikum Bamberg, Bamberg, Germany
2. School of Clinical and Applied Sciences, Leeds Becket University, Leeds, UK
3. Section of Wilderness Medicine, Department of Emergency Medicine, School of Medicine, University of Colorado, Denver, Colorado, USA
4. Department of Orthopedic and Trauma Surgery, University Erlangen-Nuremberg, Erlangen, Germany
5. Department of Pediatric Cardiology, University Hospital Erlangen, Erlangen, Germany
6. Department of Orthopedic and Trauma Surgery, Klinikum Solingen, Solingen, Germany
7. Department of Surgery, North York General Hospital, Toronto, Canada
8. Division of Plastic and Reconstructive Surgery, Department of Surgery, University of Toronto, Toronto, Canada
9. Department of Orthopedic Surgery, University Hospital Rostock, Rostock, Germany