1. First Department of Orthopaedic Surgery, National and Kapodistrian University of Athens, School of Medicine, ‘ATTIKON’ University General Hospital, Athens, Hellenic Republic, Greece
2. Department of Orthopaedic Surgery, Mediterraneo Hospital, Athens, Greece
3. Laboratory of Molecular Pharmacology/ Sector for Bone Research, School of Health Sciences, University of Patras, Patras 26504, Greece