1. The Houston Methodist Institute for Academic Medicine, Houston, TX, USA;
2. W. L. Gore & Associates, Health Economics, Carmel, IN, USA;
3. Envision Pharma Group, Curo, Marlow, UK;
4. The Congenital Heart Center, Medical University of South Carolina, Charleston, SC, USA;
5. The Heart Centre, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark;
6. University of Pennsylvania, Philadelphia, PA, USA