Slatinskaya, O. V.
Luneva, O. G.
Deev, L. I.
Orlov, S. N.
Maksimov, G. V.
Article History
Received: 29 November 2019
Revised: 29 November 2019
Accepted: 31 January 2020
First Online: 25 June 2020
COMPLIANCE WITH ETHICAL STANDARDS
: <i>Conflict of interest.</i> The authors declare that they have no conflict of interest.
: <i>Statement of compliance with standards of research involving humans as subjects.</i> All procedures performed in studies involving human participants were in accordance with the ethical standards of the 1964 Helsinki Declaration and its later amendments. Informed consent was voluntarily provided by all individual participants involved in the study.