1. From the Department of Neurology (N.W., J.K.), University of Cologne, Cologne, Germany; Max-Planck-Institute for Neurological Research (N.W., L.K., W.D.H.), Cologne, Germany; the Department of Neurology (A.T.), McGill University, Montreal, Canada; and RehaNova GmbH (I.R.-F., A.H., P.M., T.R.), Cologne, Germany.