Trifonova, E. A.
Popovich, A. A.
Vagaitseva, K. V.
Bocharova, A. V.
Gavrilenko, M. M.
Ivanov, V. V.
Stepanov, V. A.
Article History
Received: 21 February 2019
Revised: 4 April 2019
Accepted: 14 May 2019
First Online: 24 October 2019
COMPLIANCE WITH ETHICAL STANDARDS
: <i>Conflicts of interest.</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 the study involving human participants are in accordance with the ethical standards of the institutional and/or national research ethics committee and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards. Informed consent was obtained from each participant involved in the study.