Funding: the study received funding in the context of the Federal Target Program "Ensuring nuclear and radiation safety in 2016-2020 and up to 2030" (State Contract #11.313.21.2 of June 15, 2021).

Author contribution: EA Blinova — generalization of primary material, analysis and discussion of results, article text authoring; MA Yanishevskaya — statistical processing of primary data; AV Akleyev — study planning, article editing.

Compliance with the ethical standards: the study was approved by the Ethics Committee of the Urals Research Center for Radiation Medicine of the FMBA of Russia (Minutes #4 of June 8, 2023). All procedures on humans performed in the context of the study conform to the requirements of the 1964 Helsinki Declaration and its subsequent amendments or comparable ethical standards. Each participant of the study signed the voluntary informed consent form.