1. Psychosocial Department; Emma Children's Hospital; AMC; Amsterdam the Netherlands
2. Department of Epidemiology and Biostatistics; EMGO Institute for Health and Care Research; VU University Medical Centre; Amsterdam the Netherlands
3. School of Rural and Northern Health; Laurentian University; Sudbury Ontario Canada
4. Division of Pediatric Hematology/Oncology; Department of Pediatrics; IWK Health Centre; Dalhousie University; Halifax Nova Scotia Canada
5. Department of Pediatric-Hematology; Emma Children's Hospital and Hemophilia Comprehensive Care Treatment Center; AMC; Amsterdam the Netherlands
6. Department of Pediatrics; University of Toronto; Division of Hematology/Oncology; The Hospital for Sick Children; University of Toronto; Toronto Ontario Canada