[1] Rostock Univ, Med Ctr, Dept Neurol, Rostock, Germany
[2] Med Univ Vienna, Dept Neurol, Vienna, Austria
[3] Heinrich Heine Univ Dusseldorf, Med Fac, Dept Neurol, Dusseldorf, Germany
[4] Merck Healthcare Germany GmbH, Weiterstadt, Germany
[5] Bayreuth Hosp, Dept Neurol, Bayreuth, Germany
[6] Neurol Grp Practice, Ulm, Germany
[7] Neurol Private Practice, Hamburg, Germany
[8] Neuroctr Itzehoe, Itzehoe, Germany
[9] Univ Hosp Bern, Dept Neurol, Inselspital Bern, Bern, Switzerland
[10] Rostock Univ, Med Ctr, Dept Neurol, Div Neuroimmunol, Gehlsheimer Str 20, D-18147 Rostock, Germany