1. Oncology and Liver Diseases Department, King Faisal Specialist Hospital and Research Center, Riyadh, Saudi Arabia
2. Pediatric Hematology-Oncology Department, King Faisal Specialist Hospital and Research Center, Riyadh, Saudi Arabia
3. General Pediatrics Department, King Faisal Specialist Hospital and Research Center, Riyadh, Saudi Arabia
4. Pediatric Hematology-Oncology Nursing Department, King Faisal Specialist Hospital and Research Center, Riyadh, Saudi Arabia
5. Children's Palliative Care Department, Whittington Health NHS Trust, London, UK