1. From CREST, UMDNJ-New Jersey Medical School (R.W.H.), Newark, NJ; CREST, Mayo Clinic (T.G.B.), Jacksonville, Fla; CREST, Intervention (Cardiology), and Interventional Cardiology (G.S.R.), Lenox Hill, New York, NY; CREST Canada and, UHN Stroke Program (F.L.S.), Toronto Western Hospital, Toronto, ON, Canada; Robarts Research Institute (H.J.M.B.), London, ON, Canada.