Topchieva, L. V.
Balan, O. V.
Korneva, V. A.
Malysheva, I. E.
Pankrasheva, K. A.
Article History
Received: 3 April 2018
Revised: 5 May 2018
Accepted: 8 June 2018
First Online: 17 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 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.