Kuzichkin, D. S.
Markin, A. A.
Juravlyova, O. A.
Krivitsyna, Z. A.
Vostrikova, L. V.
Zabolotskaya, I. V.
Loginov, V. I.
Article History
Received: 10 April 2018
Revised: 7 March 2019
Accepted: 4 April 2019
First Online: 13 January 2020
COMPLIANCE WITH ETHICAL STANDARDS
: <i>Conflict of interest.</i> The authors declare the absence of overt and potential conflicts of interest related to the publication of this article.
: <i>Statement of compliance with standards of research involving humans as subjects.</i> All studies were conducted in accordance with the principles of biomedical ethics formulated in the 1964 Helsinki Declaration and its subsequent updates and approved by the Commission on Biomedical Ethics of the Institute of Biomedical Problems of the Russian Academy of Sciences (Moscow). Each research participant presented a voluntary written informed consent signed after explanation of potential risks and benefits, as well as the nature of the upcoming research.