1. Department of Trauma, Hand and Reconstructive Surgery, University Hospital, Goethe University, Frankfurt am Main, Germany
2. Department of Surgery, Bethanien Private Hospital, Zurich, Switzerland
3. Surgical Intensive Care Medicine, University Hospital of Zurich, Zurich, Switzerland
4. Department of Orthopaedic and Trauma Surgery, Inselspital, University of Berne, Berne, Switzerland