1. The Heart Institute, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, United States
2. Department of Pediatrics, University of Cincinnati School of Medicine, Cincinnati, Ohio, United States
3. Uganda Heart Institute, Mulago Hospital, Kampala, Uganda
4. Division of Paediatric Cardiology, Department of Paediatrics and Child Health, University of Cape Town, Cape Town, South Africa
5. Reach, Cape Town, South Africa
6. Department of Biomedical Informatics, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, United States
7. Department of Global Health & Division of Cardiology, University of Washington, Seattle, Washington, United States
8. Reach, Geneva, Switzerland
9. Department of Cardiology, Children's National Medical Center, Washington, District of Columbia, United States
10. Division of Pediatric Cardiology, Department of Pediatrics, Baylor College of Medicine, Texas Children's Hospital, Houston, United States
11. Division of Cardiology and Paediatric Cardiology, Department of Medicine/Paediatrics and Child Health, University of Cape Town, Cape Town, South Africa
12. South African Medical Research Council, Cape Town, South Africa
13. Division of Emergency Medicine and Department of Biomedical Informatics, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, United States