Klyukin, L. M.
Namiot, V. A.
Udaltsov, S. N.
Article History
Received: 3 May 2018
Revised: 12 June 2018
Accepted: 13 December 2018
First Online: 28 August 2019
COMPLIANCE WITH ETHICAL STANDARDS
: Conflict of interest. The authors declare that they have no conflict of interest.
: Statement of compliance with standards of research involving humans as subjects. All procedures performed in studies involving human participants were in accordance with the 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 involved in the study.