Druzhinin, Anatoly
Ostrovskii, Igor
Khoverko, Yuriy
Rogacki, Krzysztof
Article History
Received: 30 December 2018
Accepted: 14 May 2019
First Online: 21 May 2019
Conflict of interest
: The authors declare that they have no competing interests.
: This study has nothing to do with human participants or health-related outcomes.