Fattakhova, L. A.
Shcherbakov, V. P.
Kuzina, D. M.
Article History
Received: 14 February 2020
Revised: 2 March 2020
Accepted: 5 March 2020
First Online: 15 January 2021
COMPLIANCE WITH ETHICAL STANDARDS
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: The authors declare that they have no conflict of interest.