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Authors
Berdina, Olga N. https://orcid.org/0000-0003-0930-6543
Madaeva, Irina M. https://orcid.org/0000-0003-3423-7260
Votineva, Anastasia S. https://orcid.org/0000-0002-0361-2868
Sholokhov, Leonid F. https://orcid.org/0000-0003-3588-6545
Bugun, Olga V. https://orcid.org/0000-0002-2162-3683
Rychkova, Liubov V. https://orcid.org/0000-0002-0117-2563
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Article History
Received: 14 December 2025
Accepted: 2 February 2026
First Online: 23 February 2026
Declarations
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: The authors declare no competing interests. Olga N. Berdina has nothing to disclose. Irina M. Madaeva has nothing to disclose. Anastasia S.Votineva has nothing to disclose. Leonid F. Sholokhov has nothing to disclose. Olga V. Bugun has nothing to disclose. Liubov V. Rychkova has nothing to disclose.
: All procedures involving human participants were performed in accordance with the ethical principles of the Declaration of Helsinki (1964, ed. 2013) and approved by the Committee on Biomedical Ethics (Ref No. 2, 18.02.2020). Patients and their parents provided written individual informed consent to this study.
: Not applicable.
: Not applicable.
