Udina, I. G.
Uchaeva, V. S.
Volobuyev, V. V.
Gracheva, A. S.
Vasiliev, Yu. A.
Article History
Received: 22 May 2019
Revised: 2 July 2019
Accepted: 9 July 2019
First Online: 27 January 2020
COMPLIANCE WITH ETHICAL STANDARDS
: Conflicts of interest . The authors declare that they have no conflicts of interest.
: Statement of compliance with standards of research involving humans as subjects. All procedures performed in the 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.