Druzhinin, V. G.
Minina, V. I.
Baranova, E. D.
Golovina, T. A.
Meyer, A. V.
Mikhaylova, A. O.
Timofeeva, A. A.
Titov, V. A.
Tolochko, T. A.
Shubenkina, D. P.
Article History
Received: 24 April 2019
Revised: 24 May 2019
Accepted: 30 May 2019
First Online: 24 October 2019
COMPLIANCE WITH ETHICAL STANDARDS
: Conflict of interests . The authors declare that they have no conflict of interest.
: Statement of compliance with standards of research involving humans as subjects . All procedures carried out in this study that involved people comply with the ethical standards of the institutional and/or national research ethics committee and the 1964 Helsinki Declaration and its subsequent changes or comparable ethical standards.
: Informed voluntary consent was obtained from each of the participants in the study.