[1] Univ Florida, Dept Pediat, Div Pediat Crit Care, Gainesville, FL USA
[2] Univ Florida, Dept Neurosurg, Div Pediat Neurosurg, Gainesville, FL USA
[3] Univ Florida, Dept Neurol, Div Neurocrit Care, Gainesville, FL USA
[4] Univ Florida, Congenital Heart Ctr, Dept Pediat, Div Pediat Cardiol, Gainesville, FL USA
[5] Univ Florida, Congenital Heart Ctr, Dept Cardiothorac Surg, Gainesville, FL USA
[6] Univ Miami, Jackson Mem Hosp, Dept Pediat, Div Cardiol & Pediat Cardiac Crit Care, Miami, FL USA
[7] Univ Florida, Shands, 1600 SW Archer Rd, Gainesville, FL 32610 USA