1. University of Texas at Houston Stroke Center, University of Texas Health Foundation, University of Texas Health Science Center, Houston
2. Department of Neurology, Kaiser Permanente, Los Angeles, California
3. Department of Neurology, Cleveland Clinic Health Foundation, Cleveland, Ohio
4. Department of Neurology, Ohio Health Methodist Riverside Hospital, Columbus
5. Department of Neurology, University of Tennessee, Memphis
6. Department of Neurology, University of Kansas Medical Center, Kansas City
7. Department of Neurology, Texas Stroke Institute, Plano
8. Department of Neurology, WellStar Hospital, Marietta, Georgia
9. Department of Neurology, Saint Louis University Hospital, Saint Louis, Missouri
10. Department of Neurosurgery, University of Texas Health Science Center, Houston
11. Department of Neurology, Tulane University, New Orleans, Louisiana