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Authors
Petrova, N. N.
Khvostikova, D. A.
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Article History
Received: 30 June 2020
Revised: 5 January 2021
Accepted: 11 January 2021
First Online: 9 December 2021
COMPLIANCE WITH ETHICAL STANDARDS
: Conflict of interests. The authors declare that there is 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.
