1. Cancer Registry of NorwayInstitute of PopulationBased Cancer Research Oslo Norway
2. Institute of Basic Medical SciencesUniversity of Oslo Oslo Norway
3. Institute of Health and SocietyUniversity of Oslo Oslo Norway
4. Department of Haematology and Medical OncologyIcahn School of Medicine at Mount Sinai New York NY
5. Oslo University HospitalNorwegian National Advisory Unit on Women's Health Oslo Norway
6. University of Southern California, Department of Preventive Medicine Los Angeles CA
7. Folkhälsan Research Centre, Genetic Epidemiology Group, and Faculty of MedicineHelsinki University Helsinki Finland
8. Department of Community Medicine, Faculty of Health SciencesUniversity of Tromsø, The Arctic University of Norway Tromsø Norway
9. Department of Medical Epidemiology and BiostatisticsKarolinska Institutet Stockholm Sweden