Derenko, Miroslava
Denisova, Galina
Malyarchuk, Boris
Dambueva, Irina
Bazarov, Boris
Article History
Received: 10 May 2017
Revised: 19 September 2017
Accepted: 19 September 2017
First Online: 9 November 2017
Compliance with Ethical Standards
:
: The authors declare no competing interests.