1. Department of Neurology, Psychiatry, Physiotherapy and Rehabilitation, Preventive Medicine, and Public Health; Sofia University "St. Kliment Ohridski"; Sofia Bulgaria
2. Department of Psychiatry; University of Oxford; Oxford UK
3. Department of Health Promotion and Human Behavior; Kyoto University Graduate School of Medicine/School of Public Health; Kyoto Japan
4. Department of Psychiatry; Temerty Faculty of Medicine, University of Toronto; Toronto Canada
5. Centre for Addiction and Mental Health; Toronto Canada
6. Oxford Health NHS Foundation Trust; Oxford UK