Riediger, Anja Lisa
Dietz, Steffen
Schirmer, Uwe
Meister, Michael
Heinzmann-Groth, Ingrid
Schneider, Marc
Muley, Thomas
Thomas, Michael
Sültmann, Holger
Article History
Received: 16 June 2016
Accepted: 30 August 2016
First Online: 19 September 2016
Competing interests
: The authors declare no competing financial interests.