I. A. Beltceva
FSBI V.M. Bekhterev National Medical Research Center for Psychiatry and Neurology, RF Ministry of Health
Russian Federation

Iuliia A. Beltceva, Cand. of Sci. (Med.), Head of Geropsychiatric Unit 

St. Petersburg

N. M. Zalutskaya
FSBI V.M. Bekhterev National Medical Research Center for Psychiatry and Neurology, RF Ministry of Health; Pavlov First Saint Petersburg State Medical University, RF Ministry of Health
Russian Federation

Natalia M. Zalutskaya, Cand. of Sci. (Med.), Docent, Leading Researcher, Department of Geriatric Psychiatry; assistant professor, Department of Psychiatry and Narcology 

St. Petersburg

N. G. Neznanov
FSBI V.M. Bekhterev National Medical Research Center for Psychiatry and Neurology, RF Ministry of Health; Pavlov First Saint Petersburg State Medical University, RF Ministry of Health
Russian Federation

Nikolai G. Neznanov, Dr. of Sci. (Med.), Professor, Director, Head of Department, Department of Geriatric Psychiatry; Head of Department of Psychiatry and Narcology 

St. Petersburg