1. Department of Neurology and Weill Institute for Neurosciences University of California, San Francisco San Francisco California USA
2. National Institute of Neurologic Disorders and Stroke (NINDS) Bethesda Maryland USA
3. Department of Neurology University of California, Los Angeles Los Angeles California USA
4. Department of Neurology, Massachusetts General Hospital, Harvard Medical School Boston Massachusetts USA
5. Department of Neurology University of Pennsylvania School of Medicine Philadelphia Pennsylvania USA
6. Department of Neurology, Johns Hopkins School of Medicine Baltimore Maryland USA
7. Department of Neurology University of Pittsburgh School of Medicine Pittsburgh Pennsylvania USA
8. Department of Neurology, Boston Children's Hospital, Harvard Medical School Boston Massachusetts USA
9. Department of Neurology University of Iowa Carver College of Medicine Iowa City Iowa USA
10. Department of Neurology Yale University School of Medicine New Haven Connecticut USA