[1] IRCCS Ist Giannina Gaslini, Pediat Neurol & Muscular Dis Unit, I-16147 Genoa, Italy
[2] Univ Genoa, Dept Neurosci Rehabil Ophthalmol Genet Maternal &, I-16132 Genoa, Italy
[3] IRCCS Ist Giannina Gaslini, Med Genet Unit, I-16147 Genoa, Italy
[4] Univ Genoa, Dept Expt Med, I-16132 Genoa, Italy
[5] Osped Policlin San Martino, IRCCS, I-16132 Genoa, Italy