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Authors
Shumkov, V. A.
Zagorodnikova, K. A.
Boldueva, S. A.
Murzina, A. A.
Petrova, V. B.
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Article History
Received: 9 September 2020
Revised: 26 November 2020
Accepted: 10 December 2020
First Online: 9 December 2021
COMPLIANCE WITH ETHICAL STANDARDS
: Conflict of interest . The authors declare that they have no conflict of interest.
: Statement of compliance with standards of research involving humans as subjects . The study was approved by the local ethics committee (Mechnikov North-Western State Medical University). Informed consent was obtained from all individual participants involved in the study.
