1. Mission Health System, Asheville, NC (E.C.J.).
2. Massachusetts General Hospital, Boston (L.H.S.).
3. Washington University of St. Louis, MO (P.D.P.).
4. Penn Highlands Healthcare, DuBois, PA (J.B.).
5. Baylor College of Medicine, Houston, TX (R. Dickson).
6. Detroit East Medical Control Authority, MI (R. Dunne).
7. National Association of EMS Physicians (R. Dunne, C.M.-G.).
8. University of Michigan, Wyoming (J. Foley).
9. University of Kentucky, Lexington (J.F.F.).
10. American Association of Neurological Surgeons, Society of NeuroInterventional Surgery (J.F.F.).
11. Oakland County Medical Control Authority, Pontiac, MI (G.L.).
12. University of Pittsburgh, PA (C.M.-G.).
13. Michigan Stroke Registry, Lansing (S.O.).
14. City of Pittsburgh Emergency Medical Services, PA (M.P.).
15. University of Chicago, IL (S.P.).
16. American Academy of Neurology (S.P.).
17. University of Cincinnati, OH (C.T.R.).
18. University of Utah, Salt Lake City (P.T.).
19. National Association of State EMS Officials (P.T.).
20. Minnesota Department of Health, St. Paul (A.W.T.).
21. VA National Telestroke Program, Palo Alto, CA (A.Y.).