1. From the Cardiovascular Center, Tufts Medical Center, Boston, MA (M.S.K., N.K.K., D.D.); Cardiovascular Institute, Beth Israel Deaconess Medical Center, Boston, MA (E.W.G.); Heart and Vascular Institute, Vanderbilt University Medical Center, Nashville, TN (M.B.); Division of Cardiothoracic Surgery, Northwestern Memorial Hospital, Chicago, IL (D.T.P.); Clinical and Translational Science Institute, Tufts University, Boston, MA (R.R.); Heart and Vascular Institute, University of Pennsylvania,...