1. Department of Orthopaedics, University Hospital, Faculty of Medicine and Dentistry, Palacky University, Olomouc, Czech Republic
2. Department of Orthopaedic Surgery, Stanford, CA, USA
3. Department of Medicine and Department of Anatomy, Helsinki University Central Hospital, ORTON, Orthopaedic Hospital of the Invalid Foundation, COXA Hospital for Joint Replacement, Finland
4. Department of Immunology, Faculty of Medicine and Dentistry, Palacky University, Olomouc, Czech Republic