1. Department of Medicine, Brain Research Center, Division of Neurology, University of British Columbia, Vancouver, BC, Canada
2. School of Nursing, University of Texas Health Sciences Center at San Antonio, San Antonio, TX, USA
3. Bel Air Court, Minot, ND, USA
4. Department of Neurology, University of Texas Health Sciences Center at San Antonio, San Antonio, TX, USA
5. Department of Biostatistics, University of Iowa, Iowa City, IA, USA
6. Department of Biostatistics, University of Alabama at Birmingham, Birmingham, AL, USA
7. NINDS, Office of Clinical Research, Bethesda, MD, USA
8. Department of Radiology, University of Texas Health Sciences Center at San Antonio, San Antonio, TX, USA
9. College of Pharmacy, University of Texas at Austin, Austin, TX, USA