Aminin, Dmitry
Pislyagin, Evgeny
Astashev, Maxim
Es’kov, Andrey
Kozhemyako, Valery
Avilov, Sergei
Zelepuga, Elena
Yurchenko, Ekaterina
Kaluzhskiy, Leonid
Kozlovskaya, Emma
Ivanov, Alexis
Stonik, Valentin
Article History
Received: 13 July 2015
Accepted: 28 November 2016
First Online: 22 December 2016
Competing interests
: The authors declare no competing financial interests.