[1] Novartis Farma Italy, Origgio, Italy
[2] Osped San Raffaele, Milan, Italy
[3] Sapienza Univ, Dept Neurol & Psychiat, S Andrea Hosp, Multiple Sclerosis Ctr, Rome, Italy
[4] Univ Hosp Federico II, Naples, Italy
[5] AOU San Luigi Gonzaga, Turin, Italy
[6] Novartis Farma, Origgio, Italy
[7] Univ Bari, Bari, Italy