[1] Monroe Carell Jr Childrens Hosp Vanderbilt, Div Pediat Cardiol, Nashville, TN USA
[2] UPMC, Childrens Hosp Pittsburgh, Pediat & Clin & Translat Sci, Pittsburgh, PA 15260 USA
[3] Cincinnati Childrens Hosp Med Ctr, Dept Pediat, Cincinnati, OH 45229 USA
[4] Cincinnati Childrens Hosp Med Ctr, Inst Heart, Cincinnati, OH 45229 USA
[5] Lucile Salter Packard Childrens Hosp Stanford, Div Cardiol, Palo Alto, CA USA
[6] Stollery Childrens Hosp, Div Pediat Cardiac Surg, Edmonton, AB, Canada
[7] Baylor Coll Med, Dept Pediat, Houston, TX 77030 USA
[8] Childrens Hosp Assoc, Lenexa, KS USA
[9] Cleveland Clin, Div Pediat Cardiol, Childrens Hosp, Cleveland, OH 44106 USA