1. Division of Occupational Medicine, St. Michael’s Hospital, Toronto, Ontario, Canada
2. Dalla Lana School of Public Health and Department of Medicine, University of Toronto, Toronto, Ontario, Canada
3. Division of Occupational Medicine, Department of Medicine, University of Toronto, Toronto, Ontario, Canada
4. Centre for Urban Health Solutions, Li Ka Shing Knowledge Institute, St. Michael’s Hospital, Toronto, Ontario, Canada
5. Centre for Research Expertise in Occupational Disease, Toronto, Ontario, Canada
6. Northern Ontario School of Medicine, Sudbury, Ontario, Canada