1. Paediatric Haematology and Oncology; Department of Paediatrics; St. Anna Children's Hospital; Medical University of Vienna; Vienna; Austria
2. Children's Cancer Research Institute (St. Anna Kinderkrebsforschung); Vienna; Austria
3. Paediatric Haematology and Oncology; University Schleswig-Holstein; Campus Kiel; Kiel; Germany
4. Centro Ricerca M. Tettamanti; University of Milano-Bicocca; Monza; Italy
5. Leukaemia Research Cytogenetics Group; Northern Institute for Cancer Research; Newcastle University; Newcastle-upon-Tyne; UK
6. Department of Paediatrics ‘Salus Pueri’; SSD Ematologia Clinica e Sperimentale; University of Padova; Padova; Italy
7. Paediatric Haematology and Oncology; Justus-Liebig University Giessen; Giessen; Germany
8. Paediatric Haematology and Oncology; University of Milano-Bicocca; Monza; Italy
9. Paediatric Haematology and Oncology; John Radcliffe Hospital; Oxford; UK
10. Paediatric Haematology and Oncology; Medical School of Hannover; Hannover; Germany