1. Privolzhsky District Medical Center» FMBA of Russia
2. Privolzhsky District Medical Center» FMBA of Russia; Privolzhsky Research Medical University Ministry of Health of the Russian Federation; National Research Nizhny Novgorod State University named after N. I. Lobachevsky
3. National Research Nizhny Novgorod State University named after N. I. Lobachevsky
4. Privolzhsky Research Medical University Ministry of Health of the Russian Federation