[1] Texas Childrens Hosp, Baylor Coll Med, Congenital Heart Surg Serv, Houston, TX 77030 USA
[2] Baylor Coll Med, Michael E DeBakey Dept Surg, Div Congenital Heart Surg, Houston, TX 77030 USA
[3] Texas Heart Inst, Cullen Cardiovasc Surg Res Labs, Houston, TX 77025 USA
[4] Texas Heart Inst, Dept Biostat & Epidemiol, Houston, TX 77025 USA
[5] Baylor Coll Med, Dept Pediat, Houston, TX 77030 USA