Briefer, Elodie F.
Maigrot, Anne-Laure
Mandel, Roi
Freymond, Sabrina Briefer
Bachmann, Iris
Hillmann, Edna
Article History
Received: 20 October 2014
Accepted: 24 March 2015
First Online: 21 April 2015
Competing interests
: The authors declare that they have no competing financial interests.