1. Department of Hematology, Cancer Center Amsterdam, Vrije Universiteit Medical Center, Amsterdam, The Netherlands;
2. Department of Hematology, University Medical Center Utrecht, Utrecht, The Netherlands;
3. Janssen Research & Development, Beerse, Belgium;
4. Laboratory for Translational Immunology, University Medical Center Utrecht, Utrecht, The Netherlands;
5. Janssen Research & Development, Spring House, PA; and
6. Department of Hematology, Erasmus MC Cancer Institute, Rotterdam, The Netherlands