Valetdinova, K. R.
Ovechkina, V. S.
Zakian, S. M.
Article History
Received: 30 April 2019
Revised: 3 June 2019
Accepted: 3 June 2019
First Online: 12 September 2019
Ethics
: <b>Ethical approval</b>. 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.