1 Department of Neurology, Columbia University Irving Medical Center and the New York Presbyterian Hospital, New York, NY, USA.
2 Initiative for Columbia Ataxia and Tremor, Columbia University Irving Medical Center, New York, NY, USA.
3 Taipei Municipal Gan-Dau Hospital, Taipei Veterans General Hospital Branch, Taipei, Taiwan.
4 National Ataxia Foundation, Minneapolis, MN, USA.
5 Houston Methodist Research Institute, Houston, TX, USA.
6 Department of Neurology, University of California Los Angeles, Los Angeles, CA, USA.
7 Department of Neurology, University of Minnesota, Minneapolis, MN, USA.
8 Department of Neurology, University of California San Francisco, San Francisco, CA, USA.
9 Department of Neurology, University of Chicago, Chicago, IL, USA.
10 Department of Neurology, Denning Ataxia Center, Northwestern University Feinberg School of Medicine, Chicago, IL, USA.
11 Department of Neurology, University of Michigan, Ann Arbor, MI, USA.
12 Department of Psychiatry and Behavioral Sciences, Johns Hopkins University, Baltimore, MD, USA.
13 Department of Neurology, Johns Hopkins School of Medicine, Baltimore, MD, USA.
14 Department of Neurology, Ataxia Center, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA.
15 Department of Neurology, University of Florida, Gainesville, FL, USA.
16 Department of Neurology, Emory University, Atlanta, GA, USA.
17 Centre Hospitalier de l'Université de Montréal, University of Montreal, Montreal, QC, Canada.
18 Department of Neurology, University of South Florida, Tampa, FL, USA.
19 Department of Neurology, University of Washington, Seattle, WA, USA.
20 Department of Neurology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.
21 Department of Neurology, University of Utah, Salt Lake City, UT, USA.
22 Department of Neurology, O'Donnell Brain Institute, University of Texas Southwestern Medical Center, Dallas, TX, USA.
23 Clinical Data Science GmbH, Basel, Switzerland.
24 Department of Radiology, Center for Magnetic Resonance Research, University of Minnesota, Minneapolis, MN, USA.
25 Department of Neurology, O'Donnell Brain Institute, University of Texas Southwestern Medical Center, Dallas, TX, USA. Vikram.Shakkottai@UTSouthwestern.edu.
26 Department of Neurology, Johns Hopkins School of Medicine, Baltimore, MD, USA. Liana.Rosenthal@jhmi.edu.
27 Department of Neurology, Columbia University Irving Medical Center and the New York Presbyterian Hospital, New York, NY, USA. sk3295@cumc.columbia.edu.
28 Initiative for Columbia Ataxia and Tremor, Columbia University Irving Medical Center, New York, NY, USA. sk3295@cumc.columbia.edu.