1. 1Pediatric Oncology Unit, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy.
2. 2Department of Paediatric Oncology, Hospital Infantil Universitario Niño Jesús, Madrid, Spain.
3. 3Great North Children's Hospital, Newcastle upon Tyne, United Kingdom.
4. 4Division of Cancer Sciences, School of Medical Sciences, University of Manchester and Royal Manchester Children's Hospital, Manchester, United Kingdom.
5. 5Paediatric and Adolescent Oncology Drug Development Team, The Royal Marsden Hospital and The Institute of Cancer Research, London, United Kingdom.
6. 6Department of Pediatric Haematology-Oncology, La Timone Children's Hospital, AP-HM, Marseille, France.
7. 7Unidad de Oncología Pediátrica, Hospital Universitario y Politecnico La Fe, Valencia, Spain.
8. 8Hematology and Oncology Pediatric Institute, Léon Bérard Center, Lyon, France.
9. 9Pharmacometrics/Modelling and Simulation, Bayer AG, Berlin, Germany.
10. 10Department of Statistics, ClinStat GmbH, Cologne, Germany.
11. 11Medical Affairs and Pharmacovigilance, Bayer AG, Berlin, Germany.
12. 12Clinical Development Oncology, Bayer HealthCare Pharmaceuticals, Whippany, New Jersey.
13. 13Department of Pediatric and Adolescent Oncology, Gustave Roussy Cancer Center, INSERM U1015, Université Paris-Saclay, Villejuif, France.