1. McGill Adult Unit for Congenital Heart Disease Excellence, Montreal, Quebec, Canada (S.C., A.L., L.G., J.T., A.J.M.)
2. Department of Cardiology, Children’s Hospital Boston, Harvard Medical School, MA (M.G.)
3. Gerald Bronfman Department of Oncology, Division of Cancer Epidemiology (C.L.), Division of Oral Health and Society, Faculty of Dentistry (C.L.)
4. Department of Epidemiology, Biostatistics, and Occupational Health (J.S.K., M.A.), McGill University, Montreal, Quebec, Canada