1. Department of Physical and Rehabilitation Medicine, University of Padova, Padova, Italy
2. Venezia FC Medical Staf, Venice, Italy - Department of Physical and Rehabilitation Medicine, Casa di Cura Giovanni XXIII, Monastir di Treviso, Italy
3. Department of Orthopaedics and Traumatology, University of Rome "Tor Vergata", Roma, Italy
4. Department of Histology, Microbiology and Medical Biotechnology, University of Padova, Padova, Italy
5. Physical and Rehabilitation Medicine, University of Rome "Tor Vergata", Rome, Italy
6. UOC of Immunohaematology and Transfusion Medicine, Santo Spirito Hospital, Pescara, Italy
7. Department of Physical and Rehabilitation Medicine, University of Rome "Tor Vergata", Rome, Italy
8. Rizzoli Orthopaedic Institute, University of Bologna, Bologna, Italy
9. Department of Biology and Biotechnology, University of Pavia, Pavia, Italy
10. Orthopaedic and Trauma Department, Parma University, Parma, Italy
11. Rehabilitation Medicine, Department of Clinical and Experimental Medicine, Parma University Hospital, Parma, Italy
12. Department of Physical and Rehabilitation Medicine, University of Padua, Padua, Italy
13. Department of Rheumatology, Villa Toniolo Hospital, Bologna, Italy
14. Musciloskeletal ultrasound School, Italian Society for Ultrasound in Medicine and Biology (SIUMB), Bologna, Italy
15. Department of Orthopaedic and Traumatology, Hip Surgery Center, IRCCS San Donato Hospital, San Donato Milanese, Milan, Italy
16. Unit of Rheumatology, "Ospedale S. Pietro FBF", Rome, Italy
17. Orthopaedic and Trauma Department, San Jacopo Hospital, Pistoia, Italy
18. Department of Biology and Biotechnology "L. Spallanzani", University of Pavia, Pavia, Italy
19. Fisioclinis Formigne Clinic, Modena, Italy
20. Physical Medicine and Rehabilitation Unit, Sant'Andrea Hospital, "Sapienza" University of Rome, Rome, Italy
21. Department of Physical and Rehabilitation Medicine, "Sapienza" University of Rome, Sant'Andrea Hospital, Rome, Italy
22. Department of Musculoskeletal Disorders, Faculty od Medicine and Surgery, University of Salerno, Baronissi, Salerno, Italy; Centre of Sport and Exercise Medicine, Barts and The London School of Medicine and Dentistry, Mile End Hospital, London, UK