1. Moscow Research and Practical Centre on Addictions of the Moscow Department of Healthcare, Moscow, Russia
2. Russian Medical Academy of Continuous Professional Education of the Ministry of Health of the Russian Federation, Moscow, Russia
3. Scientific Department, I.M. Sechenov First Moscow State Medical University of the Ministry of Health of the Russian Federation (Sechenov University), Moscow, Russia
4. Psychiatry and Psychotherapy Division, European Medical Centre, Moscow, Russia