1. Division of Hematology Oncology, Faculty of Medicine Universitas Padjadjaran Dr. Hasan Sadikin Hospital Bandung, Department of Child Health Bandung Indonesia
2. Universitas Padjadjaran Faculty of Medicine Bandung Indonesia
3. Department of Public Health Faculty of Medicine Universitas Padjadjaran Bandung Indonesia
4. Princess Máxima Center for Pediatric Oncology Utrecht The Netherlands
5. Emma Children's Hospital, Amsterdam UMC Vrije Universiteit Amsterdam The Netherlands