1. Centre for Musculoskeletal Surgery, Charité – University Medicine Berlin
2. Centre for Interdisciplinary Rescue and Emergency Medicine (CiRN), BG Trauma Centre, Ludwigshafen
3. Department for Foot and Ankle Surgery, Johanniter Waldkrankenhaus, Cologne
4. Department for Trauma, Hand and Reconstructive Surgery, Johann Wolfgang Goethe University, Frankfurt/Main
5. Trauma and Orthopaedic Surgery, BG Trauma Centre, Frankfurt am Main