1. Laboratory of Hematology, GIGA-Research, University of Liège, B-4000 Liège, Belgium
2. Metastasis Research Laboratory, GIGA-Research, University of Liège, B-4000 Liège, Belgium
3. Department of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel, B-1090 Brussels, Belgium
4. Department of Pathology, OLV Ziekenhuis Aalst, B-9300 Aalst, Belgium