1. Department of Internal Medicine, Albert Schweitzer Hospital, Dordrecht, The Netherlands;
2. Department of Research, Netherlands Comprehensive Cancer Organisation (IKNL), Utrecht, The Netherlands;
3. Department of Public Health, Erasmus University Medical Centre, Rotterdam, The Netherlands;
4. Department of Hematology, Erasmus MC Cancer Institute, Rotterdam, The Netherlands;
5. Department of Immunology, Erasmus University Medical Centre, Rotterdam, The Netherlands;
6. Department of Clinical Chemistry, Result laboratories, Albert Schweitzer Hospital, Dordrecht, The Netherland;
7. Department of Hematology, Academic Medical Centre, Amsterdam, the Netherlands