1. Faculty of Medicine and Health Sciences, Sherbrooke University, Sherbrooke, QC J1H 5N4, Canada
2. Department of Foundations and Practices in Education, Faculty of Education Sciences, Laval University, Quebec, QC G1V 0A6, Canada
3. Clinical Addiction Research Unit, Faculty of Medicine, Lund University, Box 117, 221 00 Lund, Sweden
4. CHUS Research Center, Sherbrooke, QC J1H 5N4, Canada