1 From the Division of Cardiovascular Sciences, National Heart, Lung, and Blood Institute, Bethesda, MD (J.L.F., L.S.C.); Division of Cardiovascular Disease, Mayo Clinic, Rochester, MN (B.A.B.); Faculty of Rehabilitation Medicine, University of Alberta, Edmonton, Alberta, Canada (M.J.H.); Division of Cardiology, Duke University School of Medicine, Durham, NC (W.E.K.); Institute for Exercise and Environmental Medicine, University of Texas Southwestern Medical Center, Dallas (B.D.L.); Cardiovascular Division, Brigham and Women's Hospital, Boston, MA (M.A.P.); Division of Cardiology, Albert Einstein College of Medicine, Bronx, NY (I.L.P.); Department of Kinesiology (D.C.P.) and Department of Anatomy and Physiology (D.C.P.), Kansas State University, Manhattan; Division of Cardiology, Jefferson Medical College, Philadelphia, PA (G.R.R., D.J.W.); and Sections on Cardiology and Geriatrics, Department of Internal Medicine, Wake Forest School of Medicine, Winston-Salem, NC (D.W.K.). flegj@nhlbi.nih.gov.
2 From the Division of Cardiovascular Sciences, National Heart, Lung, and Blood Institute, Bethesda, MD (J.L.F., L.S.C.); Division of Cardiovascular Disease, Mayo Clinic, Rochester, MN (B.A.B.); Faculty of Rehabilitation Medicine, University of Alberta, Edmonton, Alberta, Canada (M.J.H.); Division of Cardiology, Duke University School of Medicine, Durham, NC (W.E.K.); Institute for Exercise and Environmental Medicine, University of Texas Southwestern Medical Center, Dallas (B.D.L.); Cardiovascular Division, Brigham and Women's Hospital, Boston, MA (M.A.P.); Division of Cardiology, Albert Einstein College of Medicine, Bronx, NY (I.L.P.); Department of Kinesiology (D.C.P.) and Department of Anatomy and Physiology (D.C.P.), Kansas State University, Manhattan; Division of Cardiology, Jefferson Medical College, Philadelphia, PA (G.R.R., D.J.W.); and Sections on Cardiology and Geriatrics, Department of Internal Medicine, Wake Forest School of Medicine, Winston-Salem, NC (D.W.K.).