1. DISC Department of Integrated Surgical and Diagnostic science, School of Medical and Pharmaceutical Sciences, University of Genoa, Genoa, Italy
2. DiMI Department of Internal Medicine Osteoporosis, Bone and Joint Disease Research Center, CROPO, Geno, Italy
3. CRB Biomaterial Research Center, Livorno, Italy
4. Istituti Clinici Scientifici Maugeri IRCCS, Rheumatology and Rehabilitation Unit of the Institute of Castel Goffredo, Mantua, Italy
5. IRCCS Auxologico Italian Institute - 3 Unit of Orthopaedic Surgery - Capitanio Hospital, Milan, Italy