1. Department of Hematology and Immunology, Vrije Universiteit Brussel, Brussels, Belgium
2. Department of Medical Imaging, Laboratory for in Vivo Cellular and Molecular Imaging, Vrije Universiteit Brussel, Brussels, Belgium
3. Laboratory for Molecular and Cellular Therapy, Vrije Universiteit Brussel, Brussels, Belgium
4. Department of Cellular and Molecular Immunology, Vrije Universiteit Brussel, Brussels, Belgium
5. Department of Clinical Hematology, Ghent University Hospital, Ghent, Belgium
6. European Commission, Joint Research Centre (JRC), Karlsruhe, Germany