1 | Department of Psychology, University of Waterloo, Waterloo, Ontario, Canada |
2 | Ontario Institute for Cancer Research, Toronto, Ontario, Canada |
3 | School of Medicine, University of Zambia, Lusaka, Zambia |
4 | Cancer Council Victoria, Melbourne, Victoria, Australia |
5 | Social and Epidemiological Research Department, Centre for Addiction and Mental Health, London, Ontario, Canada |
6 | Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada
Department of Epidemiology and Biostatistics, Western University, London, Ontario, Canada |