1. From the Department of Medicine, University of Chicago, Chicago, IL (N.N.); Department of Internal Medicine (J.T.T., B.D.L., M.O.G., A.T.T., J.A.d.L.,D.K.M.) and Cardiovascular Division (J.T.T., B.D.L., M.O.G., A.T.T., J.A.d.L., D.K.M.), the University of Texas Southwestern Medical Center, Dallas, TX; Institute of Exercise and Environmental Medicine at the Texas Health Presbyterian Hospital, Dallas, TX (B.D.L.); the Department of Clinical Sciences at the University of Texas Southwestern Medical...