Goeppert, Benjamin
Frauenschuh, Lena
Zucknick, Manuela
Roessler, Stephanie
Mehrabi, Arianeb
Hafezi, Mohammadreza
Stenzinger, Albrecht
Warth, Arne
Pathil, Anita
Renner, Marcus
Schirmacher, Peter
Weichert, Wilko
Article History
Received: 20 February 2015
Revised: 19 July 2015
Accepted: 5 August 2015
First Online: 13 October 2015
Change Date: 3 November 2015
Change Type: Update
Change Details: This paper was modified 12 months after initial publication to switch to Creative Commons licence terms, as noted at publication
Competing interests
: The authors declare no conflict of interest.