[1] Univ Genoa, Dept Neurosci Rehabil Ophthalmol Genet Maternal &, Genoa, Italy
[2] Italian Multiple Sclerosis Fdn, Sci Res Area, Genoa, Italy
[3] Univ Genoa, Dept Expt Med, Genoa, Italy
[4] Italian Multiple Sclerosis Soc, AISM Rehabil Ctr Liguria, Genoa, Italy