1. Division of Pediatric Surgery Department of Surgery Oregon Health and Science University Portland Oregon USA
2. Paediatric and AYA Unit Oscar Lambret Center Lille France
3. Department of Pathology Sidra Medicine and Weill Cornell Medicine Doha Qatar
4. Boston Children's Hospital and Dana Farber Cancer Institute Harvard Medical School Boston Massachusetts USA
5. Department of Paediatric Oncology Great Ormond Street Hospital for Children London UK
6. Division of Pediatric Surgery Department of Surgery Nationwide Children's Hospital The Ohio State University College of Medicine Columbus Ohio USA
7. University of Iowa Hospitals and Clinics/Stead Family Children's Hospital Iowa City Iowa USA
8. Department of Pediatric Radiology Lucile Packard Children's Hospital Stanford University Stanford California USA
9. Paediatric Haematology and Oncology Saarland University Hospital Homburg Germany
10. Dana‐Farber/Boston Children's Cancer and Blood Disorders Center Boston Massachusetts USA