1. a Department of Epidemiology and Community Medicine, Faculty of Medicine , University of Ottawa , Ottawa , Ontario , Canada
2. b McLaughlin Centre for Population Health Risk Assessment, University of Ottawa , Ottawa , Ontario , Canada
3. c Biostatistics Branch, Division of Cancer Epidemiology and Genetics National Cancer Institute , Washington , DC , USA
4. d Healthy Environments and Consumer Safety Branch, Health Canada , Ottawa , Ontario
5. e Occupational Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute , Washington , DC , USA
6. f Faculty of Medicine , University of Manitoba , Winnipeg , Manitoba , Canada
7. g Department of Occupational and Environmental Health, Department of Epidemiology , College of Public Health, University of Iowa , Iowa City , Iowa , USA
8. h Cancer Epidemiology, Department of Health and Senior Services , Trenton , New Jersey , USA
9. i Radiation Protection Bureau, Health Protection Branch Health Canada , Ottawa , Ontario , Canada
10. j Department of Epidemiology , College of Public Health, University of Iowa , Iowa City , Iowa , USA
11. k Department of Family and Preventive Medicine , University of Utah , Salt Lake City , Utah , USA
12. l Epidemiology Branch, National Institute of Environmental Health Sciences, Research Triangle Park , North Carolina , USA
13. m Department of Physics , St. John’s University , Collegeville , Minnesota , USA
14. n School of Medicine, Yale University , New Haven , Connecticut , USA
15. o Biostatistics Branch, National Institute of Environmental Health Sciences, Research Triangle Park , North Carolina , USA