1. Department of Hematology and
2. Department of Experimental Immunology, Academic Medical Center, Amsterdam, The Netherlands;
3. Department of Molecular Cell Biology and Immunology, Vrije Universiteit University Medical Center, Amsterdam, The Netherlands;
4. Renal Transplant Unit, Academic Medical Center, Amsterdam, The Netherlands;
5. Sanquin Blood Supply Foundation, Division of Research, Amsterdam, The Netherlands; and
6. Lymphoma and Myeloma Center Amsterdam, Amsterdam, The Netherlands