1. Louis Dundas Centre for Children's Palliative Care UCL Great Ormond Street Institute of Child Health London UK
2. Centre for Reviews and Dissemination University of York York UK
3. Department of Paediatric Haematology and Oncology Leeds Children's Hospital Leeds UK
4. UAB Division of Pediatric Hematology and Oncology University of Alabama at Birmingham Birmingham Alabama
5. Monroe Carell Jr. Children's Hospital Vanderbilt Division of Pediatric Hematology‐Oncology and Vanderbilt‐Ingram Cancer Center Nashville Tennessee