Oleg S. Popov
Должность: Specialist of «City Hospital No. 40» Kurortniy Distr. Adm., Sestroretsk; Master’s Student of SPbSU, Government of the Russian Federation, Saint-Petersburg, Russian Federation
e-mail: ospopov@outlook.com
ORCID: https://orcid.org/0000-0003-1778-0165