1. Department of Surgery St. Jude Children's Research Hospital Memphis Tennessee USA
2. Department of Paediatric Surgery Chris Hani Baragwanath Academic Hospital University of Witwatersrand Johannesburg South Africa
3. Faculty of Medicine University of Gezira Wad Madani Sudan
4. Maria Fareri Children's Hospital Valhalla New York USA
5. University Children's Hospital Zürich Zürich Switzerland
6. Department of Paediatirc Surgery Muhimbili National Hospital Dar es Salaam United Republic of Tanzania
7. Kamuzu University of Health Sciences (KUHeS) Blantyre Malawi
8. Division of Pediatric Surgery Department of Surgery Northwestern University Feinberg School of Medicine Ann & Robert H. Lurie Children's Hospital of Chicago Chicago Illinois USA
9. Department of Pediatric Surgery All India Institute of Medical Sciences New Delhi India
10. Harare Central Hospital ‐ Children's Hospital Harare Zimbabwe
11. Uganda Cancer Institute Kampala Uganda
12. Division of Pediatric Surgery University of the Philippines ‐ Philippine General Hospital Manila Philippines
13. Department of Pediatric Surgery University Teaching Hospital Lusaka Zambia
14. Pediatric Surgery Oncology ABC Cancer Centre Mexico City Mexico
15. Department of Pediatric Surgery Pediatric Oncology Institute ‐ GRAACC ‐ Federal University of São Paulo São Paulo São Paulo Brazil
16. Nuffield Department of Surgical Sciences Oxford University Oxford UK