Gorzelanny, Christian
Kmeth, Ralf
Obermeier, Andreas
Bauer, Alexander T.
Halter, Natalia
Kümpel, Katharina
Schneider, Matthias F.
Wixforth, Achim
Gollwitzer, Hans
Burgkart, Rainer
Stritzker, Bernd
Schneider, Stefan W.
Article History
Received: 23 July 2015
Accepted: 23 February 2016
First Online: 9 March 2016
Competing interests
: The authors declare no competing financial interests.