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Authors
Ivko, O. M.
Linkova, N. S.
Ilina, A. R.
Sharova, A. A.
Ruzhak, G. A.
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Article History
Received: 20 January 2020
Revised: 19 March 2020
Accepted: 24 March 2020
First Online: 30 March 2021
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.
