1. Department of Neurology, University of Pittsburgh, Pittsburgh, PA, USA
2. Northwestern University Feinberg School of Medicine, Chicago, IL, USA
3. Department of Neurology, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA
4. The Michael J Fox Foundation for Parkinson’s Research, New York, NY, USA
5. Department of Neurology, Weill Institute for Neurosciences, University of San Francisco, San Francisco, CA, USA
6. Institute for Neurodegeneration, New Haven, CT, USA
7. Department of Neurology, Northwestern University Feinberg School of Medicine, Chicago, IL, USA