[1] Ist Giannina Gaslini, Musc & Neurodegenerat Dis Unit, I-16147 Genoa, Italy
[2] Ist Giannina Gaslini, Pediat Unit 2, I-16147 Genoa, Italy
[3] Univ Genoa, Ist Giannina Gaslini, Pediat Clin Unit, Genoa, Italy
[4] Univ Genoa, Ist Giannina Gaslini, Genet Lab, Genoa, Italy
[5] Bambino Gesu Pediat Hosp, Mol Med Unit, Rome, Italy
[6] Univ Turin, Dept Pediat, I-10124 Turin, Italy
[7] Univ Catania, Dept Biol Chem, Catania, Italy
[8] Univ Roma La Sapienza, Dept Clin & Therapeut Med, Rome, Italy
[9] Univ Roma La Sapienza, Dept Neurol, Rome, Italy
[10] Univ Padua, Dept Neurol, Padua, Italy
[11] Columbia Univ, Med Ctr, Dept Neurol, New York, NY USA