Galatenko, V. V.
Shkurnikov, M. Yu.
Samatov, T. R.
Galatenko, A. V.
Mityakina, I. A.
Kaprin, A. D.
Schumacher, U.
Tonevitsky, A. G.
Article History
Received: 14 June 2015
Accepted: 14 September 2015
First Online: 8 October 2015
Competing interests
: The authors declare no competing financial interests.