1. From the Department of Medicine and Neurology, Melbourne Brain Centre at the Royal Melbourne Hospital, University of Melbourne, Australia (S.M.D., G.A.D.)
2. Department of Neurology, University of Heidelberg, Germany (W.H.)
3. Department of Clinical Sciences/Neurology, Skane University Hospital, Lund University, Sweden (B.N.)
4. Department for Neurosciences and Preventive Medicine, Danube University Krems, Austria (M.B.)
5. School of Medicine, Dentistry and Nursing, University of Glasgow, United Kingdom (K.R.L.).