Bushueva, O. Yu.
Polonikov, A. V.
Ivanov, S. V.
Ivanov, I. S.
Klesova, E. Yu.
Tsukanov, A. V.
Article History
Received: 21 May 2019
Revised: 3 September 2019
Accepted: 3 October 2019
First Online: 6 July 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 a 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 voluntary consent was obtained from each of the participants.