1. Division of Gastroenterology, Department of Medicine, Western University, London Health Sciences Center, London, Ontario, Canada
2. Alimentiv, London, Ontario, Canada
3. Departamento de Gastroenterología, Escuela de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile
4. Centre for Addiction and Mental Health, Institute for Mental Health Policy Research, Toronto, Ontario, Canada
5. Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health, Toronto, Ontario, Canada
6. Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada
7. Centre for Addiction and Mental Health, World Health Organization/Pan American Health Organization Collaborating Centre, Toronto, Ontario, Canada
8. Department of Psychiatry, University of Toronto, Toronto, Ontario, Canada
9. Department of Epidemiology and Biostatistics, Schulich School of Medicine, Western University, London, Ontario, Canada