Klose, Ralph
Krzywinska, Ewelina
Castells, Magali
Gotthardt, Dagmar
Putz, Eva Maria
Kantari-Mimoun, Chahrazade
Chikdene, Naima
Meinecke, Anna-Katharina
Schrödter, Katrin
Helfrich, Iris
Fandrey, Joachim
Sexl, Veronika
Stockmann, Christian
Article History
Received: 22 March 2016
Accepted: 8 July 2016
First Online: 19 August 2016
Competing interests
: The authors declare no competing financial interests.