Ivanova, M. V.
Chekanova, E. O.
Belugin, B. V.
Tutykhina, I. L.
Dolzhikova, I. V.
Zakroishchikova, I. V.
Vasil’ev, A. V.
Zakharova, M. N.
Article History
Received: 30 November 2018
Revised: 15 February 2019
Accepted: 25 February 2019
First Online: 17 September 2019
COMPLIANCE WITH ETHICAL STANDARDS
: <i>Conflict of interest:</i> The authors declare that they have no conflict of interest.
: <i>Ethical approval:</i> All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional research committee and with the 1964 Helsinki declaration and its later amendments.
: <i>Informed consent:</i> Informed consent was obtained from all individual participants included in the study.