1. The Vision Center at Children's Hospital Los Angeles Los Angeles California USA
2. USC Roski Eye Institute Keck School of Medicine of the University of Southern California Los Angeles California USA
3. Jules‐Gonin Eye Hospital, Fondation Asile des Aveugles University of Lausanne Lausanne Switzerland
4. Department of Ophthalmology & Vision Sciences University of Toronto Toronto Ontario Canada
5. Department of Ophthalmology & Vision Sciences The Hospital for Sick Children Toronto Ontario Canada
6. Departments of Molecular Genetics & Medical Biophysics University of Toronto Toronto Ontario Canada
7. Ocular Oncology Service Wills Eye Hospital Philadelphia Pennsylvania USA
8. Department of Head & Neck Surgery, Division of Surgery University of Texas MD Anderson Cancer Center Houston Texas USA
9. Department of Radiology David Geffen School of Medicine at University of California Los Angeles California USA
10. Cancer and Blood Disease Institute at Children's Hospital Los Angeles Los Angeles California USA
11. Department of Ophthalmology Stanford Byers Eye Institute Palo Alto California USA
12. Department of Ophthalmology Columbia University Medical Center New York New York USA
13. Department of Ophthalmology, Hamilton Eye Institute University of Tennessee Health Science Center Memphis Tennessee USA
14. Department of Surgery St. Jude Children's Research Hospital Memphis Tennessee USA
15. Department of Oncology St. Jude Children's Research Hospital Memphis Tennessee USA
16. Hemato‐Oncology Service Hospital JP Garrahan Buenos Aires Argentina
17. Pediatric Hematology & Oncology Hospital Sant Joan de Deu Barcelona Spain
18. Institut de Recerca Sant Joan de Deu Barcelona Spain
19. Texas Children’s Cancer Center Baylor College of Medicine Houston Texas USA