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Fedotchev, A. I.
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Article History
Received: 25 June 2025
Revised: 4 September 2025
Accepted: 1 October 2025
First Online: 1 April 2026
ETHICS APPROVAL AND CONSENT TO PARTICIPATE
: The study was conducted in accordance with the Declaration of Helsinki, adopted in June 1964 in Helsinki (Finland) and revised in October 2000 in Edinburgh (Scotland). The study was approved by the Ethics Committee of Lobachevsky State University of Nizhny Novgorod (protocol no. 46 dated February 11, 2021). Informed consent was obtained from each subject.
: The author of this work declares that he has no conflicts of interest.
