1. Department of Pathology; Radboud University Medical Center; Nijmegen The Netherlands
2. Department of Pathology; Netherlands Cancer Institute-Antoni van Leeuwenhoek; Amsterdam The Netherlands
3. Department of Pathology; Antwerp University Hospital; University of Antwerp; Edegem Belgium
4. MIPRO; University of Antwerp; Antwerp Belgium
5. Department of Hematology; Radboud University Medical Center; Nijmegen The Netherlands