Kharkov, V. N.
Zarubin, A. A.
Vagaitseva, K. V.
Radzhabov, M. O.
Novikova, L. M.
Valikhova, L. V.
Khitrinskaya, I. Y.
Stepanov, V. A.
Article History
Received: 13 July 2019
Revised: 12 December 2019
Accepted: 17 December 2019
First Online: 23 September 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 this study involving people comply with the ethical standards of the institutional and/or national committee for research ethics and the 1964 Helsinki Declaration and its subsequent changes or comparable ethical standards. Informed consent was obtained from each of the participants in the study.