1. Vrije Universiteit Brussel (VUB), Universitair Ziekenhuis Brussel (UZ Brussel), Department of Hematology, Brussels, Belgium
2. Centre Hospitalier Universitaire (CHU) de Liège, Department of Hematology, Liège, Belgium
3. Institut Jules Bordet, Department of Hematology, Brussels, Belgium
4. Vrije Universiteit Brussel (VUB), Laboratory of Molecular and Cellular Therapy, Brussels, Belgium