1. Substance-Related Harms Division, Health Promotion and Chronic Disease Prevention Branch, Public Health Agency of Canada, Ottawa, Ontario, Canada
2. Office of Drug Research and Surveillance, Health Canada, Ottawa, Ontario, Canada
3. Ontario Ministry of Health, Toronto, Ontario, Canada
4. Lifespan Chronic Disease and Conditions Division, Health Promotion and Chronic Disease Prevention Branch, Public Health Agency of Canada, Ottawa, Ontario, Canada
5. Centre for Emergency Preparedness, Public Health Agency of Canada, Ottawa, Ontario, Canada