Meleshina, Aleksandra V.
Dudenkova, Varvara V.
Shirmanova, Marina V.
Shcheslavskiy, Vladislav I.
Becker, Wolfgang
Bystrova, Alena S.
Cherkasova, Elena I.
Zagaynova, Elena V.
Article History
Received: 20 October 2015
Accepted: 21 January 2016
First Online: 25 February 2016
Competing interests
: The authors declare no competing financial interests.