1. Department of Pathology,
2. Department of Dermatology, and
3. Department of Hematology, Leiden University Medical Center, Leiden, The Netherlands;
4. Department of Pathology and
5. Department of Hematology, Academic Medical Center, Amsterdam, The Netherlands;
6. Department of Hematology, Radboud University Medical Center, Nijmegen, The Netherlands;
7. Department of Pathology, VU University Medical Center, Amsterdam, The Netherlands;
8. Department of Pathology, Maastricht University Medical Center, Maastricht, The Netherlands;
9. Department of Internal Medicine, Groene Hart Ziekenhuis, Gouda, The Netherlands;
10. Department of Internal Medicine, Reinier de Graaf Group, Delft, The Netherlands; and
11. Department of Hematology and
12. Department of Pathology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands