1. Academic Department of Orthopaedics and Trauma, Division of Surgery, Aristotle University Medical School, Thessaloniki, Greece
2. Department of Medical Genetics, National and Kapodistrian University of Athens, Medical School, Athens, Greece
3. 4th Department of Trauma and Orthopaedics, KAT Hospital, Athens, Greece
4. Department of Surgery and Cancer, Division of Surgery, Imperial College London, London, UK