Timin, Alexander S.
Muslimov, Albert R.
Petrova, Aleksandra V.
Lepik, Kirill V.
Okilova, Maria V.
Vasin, Andrey V.
Afanasyev, Boris V.
Sukhorukov, Gleb B.
Article History
Received: 8 November 2016
Accepted: 14 February 2017
First Online: 7 March 2017
Competing Interests
: The authors declare that they have no competing interests.