[1] Univ Verona, Sch Physiotherapy, Verona, Italy
[2] San Camillo IRCCS Srl, Lab Rehabil Technol, Venice, Italy
[3] Univ Genoa, Dept Neurosci Rehabil Ophthalmol Genet Maternal &, Campus Savona, Savona, Italy
[4] Lund Univ, Dept Clin Sci Lund, Clin Epidemiol Unit, Orthoped, Entregatan 8, S-22100 Lund, Sweden
[5] Lund Univ, Dept Clin Sci Orthopaed, Clin Epidemiol Unit, Orthopaed, Lund, Sweden
[6] IRCCS Ist Ortoped Galeazzi, Unit Clin Epidemiol, Milan, Italy
[7] Direz Reg Puglia INAIL, Sovrintendenza Sanitaria Reg Puglia, Bari, Italy
[8] Univ Udine, Dept Med & Biol Sci, Udine, Italy