1. Department of Pathology; Rizzoli Orthopaedic Institute; Bologna Italy
2. Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico; Department of Clinical Sciences and Community Health; University of Milan; Endocrinology and Diabetology Unit; Milan Italy
3. Department of Orthopedics and Orthopedic Oncology; University of Padova; Padova Italy
4. Department of Degenerative and Oncologic Spine Surgery; Rizzoli Orthopaedic Institute; Bologna Italy
5. Department of Orthopaedic Oncology; Rizzoli Institute; Bologna Italy
6. Department of Pathology; Treviso Regional Hospital; Treviso Italy