Arebro, Julia
Ekstedt, Sandra
Hjalmarsson, Eric
Winqvist, Ola
Kumlien Georén, Susanna
Cardell, Lars-Olaf
Article History
Received: 14 October 2016
Accepted: 25 January 2017
First Online: 8 March 2017
Competing interests
: The authors declare no competing financial interests.