[1] Univ Rochester, Med Ctr, Div Pediat Cardiol, Rochester, NY 14642 USA
[2] Boston Med Ctr, Dept Pediat, Boston, MA USA
[3] Boston Univ, Sch Med, Dept Pediat, Boston, MA 02118 USA
[4] Univ Rochester, Med Ctr, Dept Med, Cardiol Unit, Rochester, NY 14642 USA
[5] Brigham & Womens Hosp, Dept Med, Boston, MA 02115 USA
[6] Childrens Hosp, Dept Cardiol, Boston, MA 02115 USA
[7] Harvard Univ, Sch Med, Dept Pediat, Boston, MA 02115 USA
[8] Golisano Childrens Hosp Strong, Rochester, NY USA
[9] Univ Rochester, Sch Med & Dent, Dept Pediat, Rochester, NY 14642 USA