1 Prevention and Cancer Control, Cancer Care Ontario, Toronto, Ontario, Canada
2 CHAIM Research Centre, Carleton University, Ottawa, Ontario, Canada
3 Occupational Cancer Research Center, Toronto, Ontario, Canada
4 INRS-Institut Armand-Frappier, Institut national de la recherche scientifique, University of Quebec, Laval, Quebec, Canada
5 School of Epidemiology, Public Health and Preventive Medicine, University of Ottawa, Ottawa, Ontario, Canada
6 Division of Epidemiology, Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada
7 Division of Occupational and Environmental Health, Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada