[1] Queen Mary Univ London, Blizard Inst, Barts & London Sch Med & Dent, London, England
[2] Univ Vita Salute San Raffaele, Osped San Raffaele, Dept Neurol, Milan, Italy
[3] Univ Vita Salute San Raffaele, Osped San Raffaele, Inst Expt Neurol, Milan, Italy
[4] Rutgers State Univ, New Jersey Med Sch, Newark, NJ USA
[5] Med Pk Loipl, Hosp Nervous Dis, Erlangen, Germany
[6] Univ Erlangen Nurnberg, Erlangen, Germany
[7] Univ Miami, Miller Sch Med, Dept Neurol, MS Res Ctr, Miami, FL 33136 USA
[8] Copenhagen Univ Hosp, Dept Neurol, Danish Multiple Sclerosis Ctr, Copenhagen, Denmark
[9] Univ Lille Nord France, Pole Neurol, Hop R Salengro, Lille, France
[10] EMD Serono Inc, Billerica, MA USA