[1] Rhode Isl Hosp, Div Pediat Cardiol, Dept Diagnost Imaging, Providence, RI 02903 USA
[2] Hasbro Childrens Hosp, Div Pediat Cardiol, Dept Pediat, Providence, RI USA
[3] Brown Univ, Warren Alpert Med Sch, Providence, RI 02912 USA
[4] Brown Univ, Women & Infants Hosp, Dept Pathol, Providence, RI USA
[5] Brown Univ, Women & Infants Hosp, Dept Pediat, Providence, RI 02908 USA
[6] Texas Childrens Hosp, Baylor Coll Med, John Welsh Cardiovasc Diagnost Lab, Dept Pediat Cardiol, Houston, TX 77030 USA
[7] Hasbro Childrens Hosp, Dept Genet, Providence, RI USA