Irina S. Lapshina
Russian Research Institute of Health; Kaluga State University named after K.E. Tsiolkovsky
Russian Federation

PhD (Medicine), Associate Professor of the Department of Internal Medicine of Medical Institute, Kaluga State University named after K.E. Tsiolkovsky, Kaluga, 248023, Russian Federation

e-mail: geparin.86@yandex.ru

Erzheni B. Tsybikova
Russian Research Institute of Health
Russian Federation

DSc (Medicine), chief researcher of Public Health and Demography Department, Russian Research Institute of Health, Moscow, 127254, Russian Federation

e-mail: erzheny2014@yandex.ru

Michael V. Kryuchenkov
Central Interdistrict Hospital No. 6, Kondrovo
Russian Federation

Local therapist, Central Interdistrict Hospital No. 6, Kondrovo, 249833, Russian Federation

e-mail: kenny3051994@gmail.com