1. University of Muenster, Paediatric Haematology and Oncology; Muenster Germany
2. University of Manchester, Cancer Research UK Paediatric and Familial Cancer Research Group; Manchester United Kingdom
3. Leeds Teaching Hospitals Trust; Leeds United Kingdom
4. International Confederation of Childhood Cancer Parent Organizations c/o VOKK Schouwstede; 2B 3431 JB Nieuwegen Netherlands
5. Department of Paediatrics and Child Health; University of Stellenbosch; Cape Town South Africa