Riccardo Caruso1, Alessandro Pesce2, Venceslao Wierzbicki3. 1. Department of Neurology and Psychiatry, Sapienza Rome University, Via Pietro da Cortona 1, 00196, Rome, Italy. riccardo.caruso@uniroma1.it. 2. Neurosurgical Division Sant'Andrea Hospital, Sapienza Rome University, Via di Grottarossa 1035/1039, 00189, Rome, Italy. 3. Neurosurgical Division of the Rome Army Medical Center, Via S. Stefano Rotondo 4, 00184, Rome, Italy.