1. Department of Medicine; Department of Human Genetics; Committee on Cell Physiology; University of Chicago; Chicago; IL
2. Center for Gene Therapy; Nationwide Children' Hospital; Columbus; OH
3. Department of Human Genetics; University of Utah School of Medicine; Salt Lake City; UT
4. Department of Neurology; Ohio State University; Columbus; OH
5. Department of Neurology; Washington University at St Louis; St Louis; MO
6. Department of Pediatrics and Neurology; University of Iowa Carver College of Medicine; Iowa City; IA
7. Division of Neurology; Children' Hospital of Philadelphia, and Departments of Neurology and Pediatrics; Pearlman School of Medicine; University of Pennsylvania; Philadelphia; PA
8. Department of Neurology; University of Utah School of Medicine; Salt Lake City; UT
9. Department of Physical Therapy; University of Utah; Salt Lake City; UT
10. Department of Neurology; University of Minnesota; Minneapolis; MN
11. Department of Physical Medicine and Rehabilitation; University of California; Davis; Sacramento; CA