1. Departments of Orthopaedics and of Trauma and Reconstructive Surgery, Center for Musculoskeletal Surgery, Charité–Universitätsmedizin Berlin, Berlin, Germany.
2. Clinic for Radiology, Charité–Universitätsmedizin Berlin, Berlin, Germany.
3. Institute for Neuropathology, Charité–Universitätsmedizin Berlin, Berlin, Germany.