Zhirkov, A. A.
Yagov, V. V.
Antonenko, A. A.
Korotkov, A. S.
Zuev, B. K.
Article History
Received: 25 June 2018
Revised: 19 November 2018
Accepted: 7 July 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.