Velichko, A. K.
Razin, S. V.
Kantidze, O. L.
Article History
Received: 5 August 2020
Revised: 5 August 2020
Accepted: 12 August 2020
First Online: 29 April 2021
COMPLIANCE WITH ETHICAL STANDARDS
: The authors declare that they have no conflict of interest. This work does not contain any studies involving animals or human subjects performed by any of the authors.