1. Department of Pathology and Medical Biology , University of Groningen, University Medical Center Groningen (UMCG), Groningen, the Netherlands
2. Department of Translational Molecular Biology , University of Texas MD Anderson Cancer Center, Houston, TX, USA
3. Department of Human Genetics , University of Miami, Sylvester Comprehensive Cancer Center, Miami, FL, USA
4. Department of Genetics , University of Groningen, University Medical Center Groningen (UMCG), Groningen, the Netherlands
5. Department of Lymphoid Cancer Research , BC Cancer Center, Vancouver, BC, Canada
6. Institute of Human Genetics , Polish Academy of Sciences, Poznan, Poland