Bayramov, Andrey V.
Ermakova, Galina V.
Eroshkin, Fedor M.
Kucheryavyy, Alexandr V.
Martynova, Natalia Y.
Zaraisky, Andrey G.
Article History
Received: 15 June 2016
Accepted: 28 November 2016
First Online: 23 December 2016
Competing interests
: The authors declare no competing financial interests.