1. Department of Orthopedic and Trauma Surgery, Klinikum Bamberg, Bamberg Germany
2. Universitätsmedizin Rostock, Universitatsmedizin Rostock, Orthopedics, Rostock, Germany
3. School of Health, Leeds Becket University, UK
4. Department of Orthopedic and Trauma Surgery, Friedrich Alexander Universität Erlangen-Nürnberg, Germany
5. Section of Wilderness Medicine, Department of Emergency Medicine at the University of Colorado School of Medicine, USA