[1] Rutgers State Univ, New Jersey Med Sch, Newark, NJ 07102 USA
[2] Thomas Jefferson Univ, Jefferson Med Coll, Div Clin Neuroimmunol, Philadelphia, PA 19107 USA
[3] Univ Vita Salute San Raffaele, Osped San Raffaele, Dept Neurol, Milan, Italy
[4] Univ Vita Salute San Raffaele, Osped San Raffaele, Inst Expt Neurol, Milan, Italy
[5] Hosp Univ Vall dHebron, Dept Neurol Neuroimmunol, Barcelona, Spain
[6] Merck KGaA, Darmstadt, Germany
[7] EMD Serono Inc, Billerica, MA USA