1. From the Minneapolis Heart Institute Foundation at Abbott-Northwestern Hospital (K.M.H., S.D., B.T.U., T.J.K., F.E., E.R., Q.G.O., T.F.F., V.R.K., K.J.G., T.D.H.); Division of Cardiology (C.E.S.) and Epidemiology and Community Health (S.D., A.T.H.), University of Minnesota; Consulting Radiology, Ltd (S.I.); Northwest Anesthesia, PA (J.D.C.); Emergency Care Consultants, PA (C.K.); Center for Healthcare Innovation, Allina Hospitals and Clinics (L.L.B.), Minneapolis, Minn.