[1] Univ Foggia, Clin Nervous Syst Dis, Foggia, Italy
[2] Azienda Ospedaliera, Div Neurophysiopathol, Perugia, Italy
[3] Osped Bambino Gesu, Div Neurol, Rome, Italy
[4] Univ Bari, Ist Clin Neurol, Bari, Italy
[5] Osped San Gerardo, Ctr Lepilessia, Monza, Italy