1. Weill Institute for Neurosciences, Department of Neurology, University of California, San Francisco
2. Department of Ophthalmology, University of California, San Francisco
3. Associate Editor, JAMA Neurology
4. Department of Physical Therapy and Rehabilitation, University of California, San Francisco
5. Department of Physical Therapy and Rehabilitation, San Francisco State University, San Francisco, California
6. Department of Epidemiology and Biostatistics, University of California, San Francisco