[1] Royal Prince Alfred Hosp, Sydney, NSW 2050, Australia
[2] Univ Sydney, Sydney, NSW 2050, Australia
[3] CHU Nantes, Hop Mere & Enfant, Dept Paediat Cardiol, F-44035 Nantes 01, France
[4] Univ Hosp, Dept Neonatol, Neonatal Neuroimaging & Cerebral Haemodynam Unit, Madrid, Spain
[5] Royal N Shore Hosp, Sydney, NSW, Australia
[6] Univ Calif San Diego, San Diego, CA 92103 USA
[7] Hammersmith Hosp, Dept Paediat, London, England
[8] Hosp Sick Children, Dept Neonatol, Toronto, ON M5G 1X8, Canada
[9] Labatt Family Heart Ctr, Dept Cardiol, Toronto, ON, Canada