Rukoyatkina, Natalia
Butt, Elke
Subramanian, Hariharan
Nikolaev, Viacheslav O
Mindukshev, Igor
Walter, Ulrich
Gambaryan, Stepan
Benz, Peter M
Article History
Received: 26 February 2017
Revised: 25 May 2017
Accepted: 26 May 2017
First Online: 29 June 2017
Competing interests
: The authors declare no conflict of interest.