1. Department of Pediatric Oncology and Hematology Saarland University Homburg Germany
2. Department of Oncology The Hospital for Sick Children Toronto Ontario Canada
3. Department of Pathology Children's Hospital Colorado Anschutz Medical Campus Aurora Colorado USA
4. Texas Children's Cancer Center Baylor College of Medicine Houston Texas USA
5. Wellcome Sanger Institute Hinxton UK
6. Molecular Bases of Genetic Risk and Genetic Testing Unit, Department of Research Fondazione IRCCS Istituto Nazionale dei Tumori Milan Italy
7. Division of Urology Seattle Children's Hospital Seattle Washington USA
8. Department of Urology University of Washington Seattle Washington USA
9. Princess Máxima Center for Pediatric Oncology Utrecht the Netherlands
10. Department of Genetics University Medical Center Utrecht Utrecht the Netherlands
11. Department of Surgery St. Jude Children's Research Hospital Memphis Tennessee USA