Frei, Dominik Michael
Hodneland, Erlend
Rios-Mondragon, Ivan
Burtey, Anne
Neumann, Beate
Bulkescher, Jutta
Schölermann, Julia
Pepperkok, Rainer
Gerdes, Hans-Hermann
Kögel, Tanja
Article History
Received: 30 March 2015
Accepted: 10 July 2015
First Online: 14 August 2015
Change Date: 21 September 2015
Change Type: Update
Change Details: A correction has been published and is appended to both the HTML and PDF versions of this paper. The error has not been fixed in the paper.
Competing interests
: The authors declare no competing financial interests.