1. Division of Cardiology, Department of Pediatrics and Adolescent Health, Faculty of Medicine University of Botswana Gaborone Botswana
2. Division of Cardiology, Department of Pediatrics and Child Health, School of Medicine Addis Ababa University Addis Ababa Ethiopia
3. Department of Surgery, Cardiothoracic Unit, School of Medicine Addis Ababa University Addis Ababa Ethiopia
4. Department of Pediatrics and Child Health, College of Health Sciences Hawassa University Hawassa Ethiopia
5. Division of Pediatric Cardiology Children's Heart Fund Cardiac Center Addis Ababa Ethiopia
6. Department of Internal Medicine Aurora Healthcare Milwaukee Wisconsin USA
7. Department of Congenital Heart Disease Ramon y Cajal University Hospital Madrid Spain
8. Department of Cardiothoracic Surgery, Pediatric Cardiac Surgery Unit Niguarda Hospital Milan Italy
9. Department of Anaesthesiology, Faculty of Medicine University of Botswana Gaborone Botswana
10. Department of Pediatric Cardiac Surgery Skane University Hospital Lund Sweden
11. Congenital Cardiac Unit Leeds Teaching Hospital NHS Trust Leeds United Kingdom
12. Division of Cardiology, Department of Pediatrics, College of Medicine University of Arizona Tucson Arizona USA
13. Pediatric and Adult Congenital Heart Surgery Division, Department of Surgery University of Arizona Tucson Arizona USA