1. From the Neurology Department (Y.V., M.K.S., C.J.B., D.S., B.S., K.P.W.), Clinical Neuroscience Center, and Ophthalmology Department (M.A.W., F.C.F., T.S.-M., C.J.B., K.P.W.), University Hospital Zurich, University of Zurich, Switzerland; Neurology Department and Institute of Clinical Neurosciences (S.R.), Royal Prince Alfred Hospital, Camperdown; and Central Clinical School (S.R.), Faculty of Medicine and Health, University of Sydney, Australia.