Shubina, T. V.
Pozina, G.
Jmerik, V. N.
Davydov, V. Yu.
Hemmingsson, C.
Andrianov, A. V.
Kazanov, D. R.
Ivanov, S. V.
Article History
Received: 19 August 2015
Accepted: 9 November 2015
First Online: 11 December 2015
Competing interests
: The authors declare no competing financial interests.