[1] Phoenix Childrens Hosp, Ctr Heart, 2nd Floor,1919 East Thomas Rd, Phoenix, AZ 85016 USA
[2] Univ Arizona, Coll Med Phoenix, Phoenix, AZ USA
[3] British Columbia Childrens Hosp, Div Pediat Cardiol, Vancouver, BC, Canada
[4] Univ Toronto, Dept Pediat, Labatt Family Heart Ctr, Hosp Sick Children, Toronto, ON, Canada
[5] Child & Hlth Auckland Univ, Starship Childrens Hosp, Auckland, New Zealand
[6] Bambino Gesu Pediat Hosp, Pediat Cardiol & Cardiosurg Dept, Pediat Arrhythmias Complex Unit, Rome, Italy
[7] Royal Childrens Hosp, Melbourne, Vic, Australia
[8] Motol Childrens Hosp, Childrens Heart Ctr, Prague, Czech Republic
[9] Evelina Childrens Hosp & Guys & St Thomas NHS Tru, London, England
[10] Childrens Hosp Colorado, Arrhythmia Ctr, Denver, CO USA
[11] Boston Childrens Hosp, Boston, MA USA
[12] Harvard Med Sch, Boston, MA USA