Zholtikov, Vitaly
Article History
Received: 16 January 2021
Accepted: 17 January 2021
First Online: 16 February 2021
Compliance with Ethical Standards
:
: The author declares that he has no conflicts of interest to disclose.
: This article does not contain any studies with human participants or animals performed by any of the authors.
: For this type of study informed consent is not required.