[1] Univ Vita Salute San Raffaele, San Raffaele Sci Inst, Dept Neurol, Multiple Sclerosis Ctr, Milan, Italy
[2] Univ Naples Federico II, Multiple Sclerosis Clin Care & Res Ctr, Dept Neurosci Reprod Sci & Odontostomatol, Naples, Italy
[3] Univ Cagliari, ATS, Multiple Sclerosis Ctr, Cagliari, Italy
[4] Univ Cagliari, Cagliari, Italy
[5] IRCCS San Raffaele Hosp, Endocrine & Metab Disorders Unit, Milan, Italy
[6] Univ Naples Federico II, Neurosci Reprod & Odontostomatol Sci Dept, Naples, Italy
[7] Univ Hosp San Luigi Gonzaga, SS Endocrinol, Biol & Sci Dept, Orbassano, Italy
[8] Univ Hosp San Luigi Gonzaga, Dept Neurol, Orbassano, Italy
[9] Univ Hosp San Luigi Gonzaga, Reg Referral Multiple Sclerosis Ctr, Orbassano, Italy
[10] Univ Padua, Univ Hosp, Multiple Sclerosis Ctr Veneto Reg, Dept Neurosci, Padua, Italy
[11] Univ Padua, Univ Hosp, Dept Neurosci DNS, Padua, Italy
[12] Hosp Gallarate, ASST Valle Olona, Multiple Sclerosis Ctr, Gallarate, Italy
[13] Univ Genua, Dept Neurosci Rehabil Ophthalmol Genet Maternal &, Genoa, Italy
[14] Univ Cattolica Sacro Cuore, Fdn Policlin A Gemelli IRCSS, Rome, Italy
[15] Univ Catania, Dept GF Ingrassia Med & Surg Sci & Adv Technol, Neurosci Sect, Catania, Italy
[16] Univ Hosp Turin, MS Ctr, Dept Neurosci & Mental Hlth, Turin, Italy
[17] Univ Vita Salute San Raffaele, San Raffaele Sci Inst, Dept Neurol, Multiple Sclerosis, Milan, Italy