Andersson, Sandra M.
Martinsson, Bengt G.
Vernier, Jean-Paul
Friberg, Johan
Brenninkmeijer, Carl A. M.
Hermann, Markus
van Velthoven, Peter F. J.
Zahn, Andreas
Article History
Received: 18 December 2014
Accepted: 29 May 2015
First Online: 9 July 2015
Competing interests
: The authors declare no competing financial interests.