1. Nicotine Addiction Research Collaborating Group, Universiti Malaya Centre for Addiction Science Studies, Universiti Malaya, Kuala Lumpur, Malaysia
2. Department of Social and Preventive Medicine, Faculty of Medicine, Universiti Malaya, Kuala Lumpur, Malaysia
3. Department of Psychological Medicine, Faculty of Medicine, Universiti Malaya, Kuala Lumpur, Malaysia
4. Department of Psychology, University of Waterloo, Waterloo, ON, Canada
5. School of Public Health Sciences, University of Waterloo, Waterloo, ON, Canada
6. Department of Primary Care Medicine, Faculty of Medicine, Universiti Malaya, Kuala Lumpur, Malaysia
7. Universiti Malaya Community Engagement Centre, Universiti Malaya, Kuala Lumpur, Malaysia
8. Ontario Institute for Cancer Research, Toronto, ON, Canada