1. Department of Physiology (J.M.L.), University of Toronto, Canada.
2. Division of Cardiology (P.O., D.M., A.S., M. Seed), The Hospital for Sick Children, Toronto, Canada.
3. Division of Neurology (V.C., S.H.A.-Y., S.P.M.), The Hospital for Sick Children, Toronto, Canada.
4. Division of Neonatology (V.C., L.G.L.), The Hospital for Sick Children, Toronto, Canada.
5. Neurosciences and Mental Health, The Hospital for Sick Children Research Institute, Toronto, Canada (S.H.A.-Y.).
6. Department of Diagnostic Imaging (S.B., M. Shroff, H.M.B.), The Hospital for Sick Children, Toronto, Canada.
7. Department of Medical Imaging (M. Shroff), University of Toronto, Canada.
8. Department of Pediatrics (R.S., S.P.M., M. Seed), University of Toronto, Canada.
9. Labatt Family Heart Centre (R.S.), The Hospital for Sick Children, Toronto, Canada.
10. Division of Cardiovascular Surgery (E.J.H., G.V.A.), The Hospital for Sick Children, Toronto, Canada.
11. Department of Surgery, Children’s Hospital of Philadelphia, PA (J.W.G.).