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Authors
Ivashkin, V. T.
Kasoev, S. G.
Stepanov, E. V.
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Article History
Received: 31 January 2019
Revised: 20 February 2019
Accepted: 26 February 2019
First Online: 5 August 2019
COMPLIANCE WITH ETHICAL STANDARDS
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards. Informed consent was obtained from all individual participants involved in the study.
: The authors declare that they have no conflict of interest.
