Frick, A http://orcid.org/0000-0003-2516-9075
Ahs, F
Linnman, C
Jonasson, M
Appel, L
Lubberink, M
Långström, B
Fredrikson, M
Furmark, T
Article History
Received: 16 February 2015
Revised: 29 April 2015
Accepted: 1 June 2015
First Online: 7 July 2015
Competing interests
: The authors declare no conflict of interest.