Niechajev, Igor http://orcid.org/0000-0003-2214-2774
Article History
Received: 23 February 2020
Accepted: 14 May 2020
First Online: 12 June 2020
Compliance with ethical standards
:
: All procedures performed in studies involving human participants were in accordance with ethical standards of the institutional and/or national research committee and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards.
: Informed consent was obtained from all individual participants in this study.
: The author declares that he has no conflict of interest.