1. From the Department of Neurology, Academic Medical Center University, Amsterdam, the Netherlands (S.M.Z., Y.B.R., P.J.N.); University Hospital Basel, Basel, Switzerland (S.T.E., H.G., P.A.L.); University Hospital of Heidelberg, Heidelberg, Germany (P.A.R.); Helsinki University Central Hospital, Helsinki, Finland (V.A., J.P., E.H., T.T.); Lille University Hospital, Lille, France (Y.C., D.L.); University Hospital Zürich, Zürich, Switzerland (H.S.); Centre Hospitalier Universitaire Vaudois, Lausanne,...