[1] Univ Vita Salute San Raffaele, San Raffaele Sci Inst, Div Neurosci, Neuroimaging Res Unit,INSPE, Milan, Italy
[2] Univ Vita Salute San Raffaele, San Raffaele Sci Inst, Dept Neurol, Milan, Italy
[3] Osped Gallarate, Multiple Sclerosis Ctr, Gallarate, Italy
[4] Univ Vita Salute San Raffaele, Neuroradiol, Milan, Italy