1. Department of Biomedicine, University Hospital Basel, University of Basel, Basel, Switzerland
2. Department of Orthopedics and Traumatology, Lucerne Cantonal Hospital, Lucerne, Switzerland
3. Schulthess Clinic Zürich, Zürich, Switzerland
4. Practice LEONARDO, Hirslanden Clinic Birshof, Münchenstein, Switzerland
5. Department of Surgery, University Hospital Basel, Basel, Switzerland