1. Danish Cancer Society Research Centre Danish Cancer Society Copenhagen Denmark
2. Department of Epidemiology Research Statens Serum Institut Copenhagen Denmark
3. Department of Public Health University of Copenhagen Copenhagen Denmark
4. Department of Paediatrics and Adolescent Medicine University Hospital Rigshospitalet Copenhagen Denmark
5. Department of Clinical Medicine, Faculty of Medicine University of Copenhagen Copenhagen Denmark
6. Department of Haematology University Hospital Rigshospitalet Copenhagen Denmark