1. From the Noninvasive Cardiovascular Imaging Program, Departments of Medicine and Radiology, Brigham and Women’s Hospital, Boston, MA (E.H., M.S.B., A.S., D.O., M.P.C., W.O., M.L.S., F.F.R., J.K., J.H., M.F.D.C., R.B.); Cardiology Service, Division of Medicine, Walter Reed National Military Medical Center and Uniformed Services University of Health Sciences, Bethesda, MD (E.H.); Center for Clinical and Epidemiological Research, Division of Internal Medicine, University of São Paulo, São Paulo, Brazil...