1. Unit of Rehabilitation and Functional Recovery, Casa di Cura La Residenza, Italy
2. Sovrintendenza Sanitaria Regionale Puglia INAIL, Italy
3. DINOGMI Department, University of Genoa, Campus of Savona, Italy
4. PG Cert in Rehabilitation of Musculoskeletal Disorders, DINOGMI Department, University of Genoa, Campus of Savona, Italy
5. Center of Biostatistics for Clinical Epidemiology, School of Medicine and Surgery, University of Milano-Bicocca, Italy
6. Clinical Epidemiology Unit, I.R.C.C.S. Orthopedic Institute Galeazzi, Italy
7. Madonna delle Grazie Hospital, Italy