1. 1Department of Immunology, Laboratory Medical Immunology, Erasmus MC, Rotterdam, The Netherlands
2. 2Division of Environmental Epidemiology and Veterinary Public Health, Institute for Risk Assessment Sciences, Utrecht University, Utrecht, The Netherlands
3. 3Department of Radiation Sciences, Oncology, Cancer Center, Department of Hematology, Umeå University, Umeå, Sweden
4. 4Second Medical Department, University Hospital Schleswig-Holstein, Kiel, Germany
5. 5Department of Hematology, University Hospital Schleswig-Holstein, Kiel, Germany
6. 6Department of Medical Biosciences, Pathology, Umeå University, Umeå, Sweden
7. 7Genomic Epidemiology Branch, International Agency for Research on Cancer, Lyon, France