1. Princess Máxima Center for Pediatric Oncology; Utrecht Netherlands
2. Department of Paediatric Oncology; Emma Children's Hospital, Amsterdam UMC, University of Amsterdam; Amsterdam Netherlands
3. Department of Oncology and Children's Research Center; University Children's Hospital Zurich; Zurich Switzerland
4. Department of Nuclear Medicine; Institut Curie; Paris France
5. Department of Clinical Physiology, Nuclear Medicine and PET; Rigshospitalet, Copenhagen University Hospital; Copenhagen Denmark
6. Department of Radiology and Nuclear Medicine; Amsterdam UMC, University of Amsterdam; Amsterdam Netherlands
7. Obstetrical, Perinatal and Pediatric Epidemiology Research Team (EPOPé); Centre of Research in Epidemiology and Statistics (CRESS), UMR1153, Université de Paris; Paris France
8. Department of General Pediatrics and Pediatric Infectious Diseases; Necker - Enfants malades hospital, Assistance Publique - Hôpitaux de Paris, Paris Descartes University; Paris France