Ellinghaus, Eva
Ellinghaus, David
Krusche, Petra
Greiner, Aljoscha
Schreiber, Claudia
Nikolaus, Susanna
Gieger, Christian
Strauch, Konstantin
Lieb, Wolfgang
Rosenstiel, Philip
Frings, Norbert
Fiebig, Andreas
Schreiber, Stefan
Franke, Andre
Article History
Received: 8 November 2016
Accepted: 28 February 2017
First Online: 4 April 2017
Competing interests
: The authors declare no competing financial interests.