1. Finnish Cancer Registry, Institute for Statistical and Epidemiological Cancer Research, Helsinki, Finland
2. Department of Public Health, University of Helsinki, Helsinki, Finland
3. School of Health Sciences, University of Tampere, Tampere, Finland
4. Department of Public Health Solutions, Finnish Institute for Health and Welfare (THL), Helsinki, Finland
5. Department of General Practice and Primary Health Care, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
6. Folkhälsan Research Center, Helsinki, Finland
7. Singapore Institute for Clinical Science, Agency for Science, Technology, and Research, Singapore, Singapore
8. Department of Obstetrics and Gynaecology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
9. Department of Health and Human Services, Division of Cancer Epidemiology and Genetics, National Cancer Institute, NIH, Bethesda, MD, USA
10. School of Mathematics and Statistics, Faculty of Science, University of New South Wales, Sydney, Australia