1. School of Physiotherapy, University of Verona , Verona, Italy
2. Department of Physical Medicine and Rehabilitation, AULSS9 Scaligera, G. Fracastoro Hospital , San Bonifacio, Verona, Italy
3. Private Practice , Vicenza, Italy
4. Department of Medical Sciences, University of Udine , Udine, Italy
5. Private Practice , Pistoia, Italy
6. Department of Biomedical and Neuromotor Sciences DIBINEM, Alma Mater University of Bologna , Bologna, Italy
7. Division of Occupational Medicine, Sant’Orsola-Malpighi Hospital IRCCS , Bologna, Italy
8. IRCCS Istituto Ortopedico Galeazzi, Unit of Clinical Epidemiology , Milan, Italy
9. Clinical Epidemiology Unit , Department of Clinical Sciences, Orthopaedic, Faculty of Medicine, Lund University, Lund, Sweden