1. From the Department of Physiology, Cardiovascular Research Center (S.J., M.C., M.H., G.Y.O., Z.K.), University of Alberta, Edmonton, Canada
2. Division of Vascular Surgery, University of Alberta and Northern Alberta Vascular Center, Grey Nuns Hospital, Edmonton, Canada (G.W.)
3. Brigham and Women’s Hospital/Harvard Medical School, Boston, MA (C.A.O.).
4. Department of Medicine, Division of Cardiology, Mazankowski Alberta Heart Institute (G.Y.O.), University of Alberta, Edmonton, Canada