1. From the Department of Cardiology, Boston Children’s Hospital and Department of Pediatrics Harvard Medical School, MA (J.P.Z.); Department of Biostatistics (S.H., L.M.S.) and Department of Epidemiology (E.J.B., R.S.V.), Boston University School of Public Health, MA; Section of Cardiovascular Medicine, Department of Medicine, Boston University School of Medicine, MA (N.M.H., E.J.B., J.A.V., R.S.V.); Boston University’s and National Heart, Blood and Lung Institute’s Framingham Heart Study, Framingham,...