1. Department of Medical Epidemiology and Biostatistics; Karolinska Institutet; Stockholm Sweden
2. Department of Diet, Genes and Environment, Danish Cancer Society Research Center; Copenhagen Denmark
3. Department of Epidemiology and Health Statistics; Zhejiang University School of Public Health; Hangzhou China
4. Department of Public Health, Hangzhou Medical School; Hangzhou China
5. Department of Epidemiology; Harvard T. H. Chan School of Public Health; Boston Massachusetts USA
6. Institute of Health and Society, University of Oslo; Oslo Norway
7. Department of Community Medicine, Faculty of Health Sciences; University of Tromsø, The Arctic University of Norway; Tromsø Norway
8. Genetic Epidemiology Group; Folkhälsan Research Center; Helsinki Finland
9. The Cancer Registry of Norway, Institute of Population Based Cancer Research; Oslo Norway