1 IRCCS San Camillo Hospital, Laboratory of Rehabilitation Technologies, Venice, Italy.
2 Department of Neuroscience, Rehabilitation, Ophtalmology, Genetics, Maternal and Child Health, University of Genoa, Genova, Liguria, Italy.
3 Department of Neuroscience, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health, University of Genoa, Campus of Savona, Via Magliotto, 2-17100 Savona, Savona, Italy.
4 Department of Medical Sciences, School of Nursing, University of Udine, Udine, Italy.