[1] AORN A Cardarelli, Naples, Italy
[2] AOU San Luigi Gonzaga, Orbassano, Italy
[3] Policlin Vittorio Emanuele, AOU, Catania, Italy
[4] Careggi Univ Hosp, Florence, Italy
[5] Ctr Sclerosi Multipla Spedali Civili Br, Montichiari, Italy
[6] Ist Neurol Carlo Besta, Milan, Italy
[7] Marche Polytech Univ, Ancona, Italy
[8] AO S Antonio Abate, Multiple Sclerosis Study Ctr, Gallarate, Italy
[9] Sapienza Univ, Rome, Italy
[10] Univ Naples 2, Naples, Italy
[11] Univ Federico II, Naples, Italy
[12] Univ Cagliari, Cagliari, Italy
[13] Univ Genoa, Genoa, Italy
[14] Univ Rome, Rome, Italy
[15] Univ Sassari, Sassari, Italy
[16] Univ Torino, Orbassano, Italy
[17] Valduce Hosp, Como, Italy