[1] Univ Genoa, Dept Neurosci Ophthalmol & Genet, Genoa, Italy
[2] AOU San Martino, ABC Adv Biotchenol Ctr, Genoa, Italy
[3] Harvard Univ, Brigham & Womens Hosp, Sch Med, Ctr Neurol Dis, Boston, MA 02115 USA
[4] Univ Genoa, Dept Expt Med, Geno, Italy