[1] Univ Roma La Sapienza, Dipartimento Med Sperimentale & Patol, Rome, Italy
[2] Osped Casa Sollievo Sofferenza San Giovanni Roton, IRCCS, Ist Mendel, Rome, Italy
[3] Univ Roma La Sapienza, Dipartimento Sci Neurol, Clin Neurol 3, I-00185 Rome, Italy
[4] IRCCS, Ist Neuromed Pozzilli Isernia, Rome, Italy