1. Department of Traumatology and Orthopaedics Septic and Reconstructive Surgery, Bundeswehr Hospital Berlin, Berlin, Germany
2. Institute for Experimental Endocrinology, Berlin Institute of Health, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, Berlin, Germany
3. Department of Paraplegiology, BG Trauma Centre Ludwigshafen, Ludwigshafen am Rhein, Germany
4. Raymond Purves Bone and Joint Research Laboratory, Kolling Institute, Institute of Bone and Joint Research, Faculty of Medicine and Health University of Sydney, Royal North Shore Hospital, St. Leonards, NSW, Australia
5. Orthopedic and Trauma Surgery, Aschaffenburg, Germany