1. Department of Haematology Cancer Center Amsterdam Amsterdam UMC, Vrije Universiteit Amsterdam Amsterdam The Netherlands
2. Department of Registration Netherlands Comprehensive Cancer Organisation (IKNL) Utrecht The Netherlands
3. Department of Haematology Erasmus MC Cancer Institute RotterdamThe Netherlands
4. Department of Haematology Cancer Center Amsterdam Amsterdam UMC University of Amsterdam Amsterdam The Netherlands
5. Lymphoma and Myeloma Center Amsterdam (LYMMCARE) Amsterdam The Netherlands
6. Department of Research Netherlands Comprehensive Cancer Organisation (IKNL) Utrecht The Netherlands
7. Department of Public Health Erasmus University Medical Center Rotterdam The Netherlands