1. Department of Pathology, Radboud University Medical Center, Nijmegen, the Netherlands
2. Pathology-DNA, location Rijnstate Hospital, Arnhem, the Netherlands
3. Institute of Medical Genetics and Pathology, University Hospital Basel, University of Basel, Basel, Switzerland
4. Department of Pathology, Princess Máxima Center for Paediatric Oncology, Utrecht, the Netherlands
5. Department of Pathology, AmsterdamUMC, location VU University Medical Center, Amsterdam, the Netherlands
6. Department of Oncology, University Hospital Basel, University of Basel, Basel, Switzerland
7. Department of Haematology, AmsterdamUMC, location VU University Medical Center, Amsterdam, the Netherlands