1 Department of Neurology, Oregon Health & Science University, USA; Portland VA Medical Center PADRECC, United States. Electronic address: dalem@ohsu.edu.
2 Department of Neurology, Mayo Clinic, United States.
3 Department of Neurology, Oregon Health & Science University, USA.
4 Department of Neurology, The Queen's Health System, United States.
5 Service de Neurologie, Centre Hospitalier de l'Université de Montréal, Canada.
6 CurePSP, Inc., United States.
7 CurePSP, Inc., United States; Department of Neurology, Rutgers Robert Wood Johnson Medical School, United States.
8 Department of Neurology, Columbia University, United States.
9 Department of Neurology, Johns Hopkins University, United States.
10 Department of Neurology, University of Michigan, United States.