1. Department of ophthalmology Universidad de Chile Santiago Chile
2. Hematology‐Oncology Service Hospital de Pediatría SAMIC Juan P Garrahan Buenos Aires Argentina
3. Pediatric Oncology Service Instituto Nacional do Cancer, INCA Rio de Janeiro Brazil
4. Interventional Neuroradiology Hospital Universitario Austral Pilar Argentina
5. Ophthalmology Service Clínica Alemana de Santiago Chile
6. Ophthalmology Service Hospital San Juan de Dios Santiago Chile
7. Pediatric Oncology Service Hospital Santa Casa Belo Horizonte Brazil
8. Pediatric Oncology Service Instituto Nacional de Enfermedades Neoplasicas, INEN Lima Peru
9. Pediatric Oncology Service Centro Hospitalar Universitário de Coimbra Coimbra Portugal
10. Ophthalmology Service Universidade Federal de Sao Paulo Escola Paulista de Medicina Sao Paulo Brazil
11. Pediatric Oncology Universidade Nove de Julho Sao Paulo Brazil
12. Pediatric Oncology Service Hospital Infantil Privado Mexico City Mexico
13. Ophthalmology Service Hospital Sant Joan de Deu Barcelona Spain
14. Instituto de Investigacion en Medicina Traslacional IIMT, Universidad Austral‐CONICET Pilar Argentina