Zil’berg, R. A.
Maistrenko, V. N.
Kabirova, L. R.
Gus’kov, V. Yu.
Khamitov, E. M.
Dubrovskii, D. I.
Article History
Received: 31 August 2018
Revised: 20 June 2019
Accepted: 20 June 2019
First Online: 26 February 2020
COMPLIANCE WITH ETHICAL STANDARDS
: Statement of compliance with standards of research involving humans as subjects . 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.
: Conflict of interests . The authors declare that they have no conflict of interest.