1. Ramón y Cajal University HospitalMadridSpain
2. Great Ormond Street HospitalLondonUnited Kingdom
3. University College LondonLondonUnited Kingdom
4. Children's Hospital ColoradoAuroraColoradoUSA
5. King Fahd Armed Forces HospitalJeddahSaudi Arabia
6. King Faisal Specialist Hospital and Research CenterRiyadhSaudi Arabia
7. Universidad Nacional de ColombiaBogotaColombia
8. KardiozentrumLa PazBolivia
9. University of Toronto and Hospital for Sick ChildrenTorontoOntarioCanada
10. Kokilaben Dhirubai Ambani Hospital and Medical Research InstituteMumbaiIndia
11. University of São PauloSão PauloBrazil
12. National Institute of HealthMaputoMozambique
13. Postgraduate Institute of Medical Education and ResearchChandigarhIndia
14. University of Cape TownCape TownSouth Africa
15. Sree Chitra Tirunal Institute for Medical Sciences and TechnologyTrivandrumIndia
16. All‐India Institute of Medical SciencesNew DelhiIndia
17. University of Uyo HospitalUyoNigeria
18. Clinica ShaioBogotaColombia
19. King Saud bin Abdulaziz UniversityRiyadhSaudi Arabia
20. Stollery Children's HospitalEdmontonAlbertaCanada