1. HELIOS Klinik Zerbst/Anhalt, Germany
2. Service of Orthopaedics and Traumatology, Lausanne University Hospital, University of Lausanne, Lausanne, Switzerland
3. Charité – Universitätsmedizin Berlin, Corporate Member of Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Center for Musculoskeletal Surgery (CMSC), Berlin, Germany