Dick, O. E.
Svyatogor, I. A.
Nozdrachev, A. D.
Guseva, N. L.
Article History
Received: 20 July 2017
Revised: 7 February 2018
Accepted: 4 April 2018
First Online: 14 May 2019
COMPLIANCE WITH ETHICAL STANDARDS
: <i>Conflict of interests.</i> The authors declare that they have no conflict of interest.
: <i>Statement of compliance with standards of research involving humans as subjects.</i> 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.