1. From the Division of Cardiology, Saint Louis University, Saint Louis, MO (J.M.S.); Saint Luke’s Mid America Heart and Vascular Institute, University of Missouri-Kansas City, Kansas City, MO (D.J.C., K.F.K., J.B.L.); Harvard Clinical Research Institute, Boston, MA (M.J.P., L.M., D.E.C.); and Methodist DeBakey Heart and Vascular Center, Houston, TX (N.S.K.).