1. Beta-Clinic Bonn, Joseph-Schumpeter-Allee 15, 53227 Bonn, Germany
2. Biostatistics and Medical Biometry, Medical School OWL, Bielefeld University, Universitätsstrasse 25, 33615 Bielefeld, Germany
3. Department of Cell Biology, Bielefeld University, Universitätsstrasse 25, 33615 Bielefeld, Germany
4. Molecular Neurobiology, Bielefeld University, Universitätsstrasse 25, 33615 Bielefeld, Germany
5. Department of Trauma and Orthopaedic Surgery, Medical School and University Medical Center OWL, Protestant Hospital of the Bethel Foundation, Bielefeld University, Burgsteig 13, 33617 Bielefeld, Germany
6. DIOSS (German Institute for Orthopaedics, Osteopathy and Sports Medicine), Lipper Hellweg 10, 33604 Bielefeld, Germany
7. Orthopedic Joint Practice at Bültmannshof, Kurt-Schumacher-Straße 17, 33615 Bielefeld, Germany