Kruchinina, O. V.
Stankova, E. P.
Galperina, E. I.
Article History
Received: 7 October 2019
Revised: 17 December 2019
Accepted: 3 February 2020
First Online: 7 July 2020
COMPLIANCE WITH ETHICAL STANDARDS
: Conflict of interests . 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.