Stojkovic, Stefan
Kaun, Christoph
Basilio, Jose
Rauscher, Sabine
Hell, Lena
Krychtiuk, Konstantin A.
Bonstingl, Cornelia
de Martin, Rainer
Gröger, Marion
Ay, Cihan
Holnthoner, Wolfgang
Eppel, Wolfgang
Neumayer, Christoph
Huk, Ihor
Huber, Kurt
Demyanets, Svitlana
Wojta, Johann
Article History
Received: 3 December 2015
Accepted: 8 April 2016
First Online: 4 May 2016
Competing interests
: The authors declare no competing financial interests.