[1] Italian Multiple Sclerosis Fdn FISM, Sci Res Area, Genoa, Italy
[2] Italian Workers Compensat Author INAIL, Rome, Italy
[3] Univ Genoa, Dept Hlth Sci, Genoa, Italy
[4] Italian Multiple Sclerosis Assoc AISM, Genoa, Italy
[5] Univ Genoa, Ctr Excellence Biomed Res CEBR, Dept Neurosci Rehabil Ophthalmol Genet Maternal &, Genoa, Italy
[6] IRCCS Osped Policlin San Martino, Occupat Med Unit, Genoa, Italy
[7] Univ Siena, Dept Life Sci, Siena, Italy
[8] Italian Multiple Sclerosis Fdn, Dept Res, Via Operai 40, I-16149 Genoa, Italy