1. FSBEI HE "Privolzhsky is- Investigative Medical University" Russian Ministry of Health
2. Federal State Budgetary Educational Institution of Higher Education "Privolzhsky Research Medical University" of the Ministry of Health of Russia
3. GBUZ of the Nizhny Novgorod region "City Hospital No. 33 of Leninsky district
4. FKUZ "Medical and sanitary unit of the Ministry of Internal Affairs of Russia in the Nizhny Novgorod region"
5. GBUZ of the Nizhny Novgorod region "City Clinical Hospital No. 3 (Nizhny Novgorod Ge- rhiatric center)