1. Department of Paediatrics and Adolescent Medicine, Copenhagen University Hospital – Rigshospitalet, Copenhagen, Denmark
2. Psychological Aspects of Cancer, Danish Cancer Institute, Copenhagen, Denmark
3. Institute of Psychology, University of Copenhagen, Copenhagen, Denmark
4. Department of Pediatrics and Adolescent Medicine, Section of Pediatric Hematology and Oncology, Aalborg University Hospital, Aalborg, Denmark
5. Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark