1. Department of Laboratory Medicine - Laboratory of Hematology, Radboud University Medical Center, Nijmegen, the Netherlands
2. Department of Hematology, Radboud University Medical Center, Nijmegen, the Netherlands
3. Department of Hematology, Leiden University Medical Center, Leiden, the Netherlands
4. Department of Rheumatology and Clinical Immunology, University Medical Center Utrecht, Utrecht, the Netherlands
5. Laboratory of Translational Immunology, University Medical Center Utrecht, Utrecht, the Netherlands