Filatova, E. O.
Konashuk, A. S.
Sakhonenkov, S. S.
Sokolov, A. A.
Afanas’ev, V. V.
Article History
Received: 30 January 2017
Accepted: 3 May 2017
First Online: 3 July 2017
Competing Interests
: The authors declare that they have no competing interests.