1. Department of Pharmaceutical Sciences, Leslie Dan Faculty of Pharmacy University of Toronto Toronto Ontario Canada
2. Division of Cardiology, Department of Medicine, Center for Tobacco Control Research and Education University of California, San Francisco San Francisco California USA
3. Department of Psychiatry and Psychology, Behavioral Health Research Program Mayo Clinic Rochester Minnesota USA
4. Clinical and Research Services, Division of Community Health Services Alaska Native Tribal Health Consortium (ANTHC) Anchorage Alaska USA
5. Research Department Southcentral Foundation (SCF) Anchorage Alaska USA
6. Departments of Pharmacology and Toxicology, and Psychiatry, Centre for Addiction and Mental Health, Temerty Faculty of Medicine University of Toronto Toronto Ontario Canada