Jutzeler, Catherine R.
Huber, Eveline
Callaghan, Martina F.
Luechinger, Roger
Curt, Armin
Kramer, John L. K.
Freund, Patrick
Article History
Received: 22 April 2015
Accepted: 19 November 2015
First Online: 6 January 2016
Competing interests
: The authors declare no competing financial interests.