| EKOS | Ethics Committee of eastern Switzerland |
| HRQoL | Health-related quality of life |
| ICCC-3 | International Classification of Childhood Cancer, Third Edition |
| NGO | Non-governmental organization |
| PedsQLTM | Pediatric Quality of Life Inventory 4.0 Generic Core Scales |
| SPOG | Swiss Pediatric Oncology Group |
| SSPHO | Swiss Society of Pediatric Hematology and Oncology |
| UCC | Ukrainian children and adolescents with cancer |