Biller, Armin
Pflugmann, Isabella
Badde, Stephanie
Diem, Ricarda
Wildemann, Brigitte
Nagel, Armin M.
Jordan, J.
Benkhedah, Nadia
Kleesiek, Jens
Article History
Received: 1 December 2015
Accepted: 18 July 2016
First Online: 10 August 2016
Competing interests
: The authors declare no competing financial interests.