Timasheva, Y. R.
Zaplakhova, O. V.
Nasibullin, T. R.
Tuktarova, I. A.
Erdman, V. V.
Bakhtiiarova, K. Z.
Mustafina, O. E.
Article History
Received: 20 April 2018
Revised: 15 May 2018
Accepted: 19 June 2018
First Online: 29 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>. The study was performed in accordance with the ethical principles of medical research involving human subjects enshrined in the Declaration of Helsinki (2013). Written informed voluntary consent was obtained from each study participant.