Persson, Mia
Simonsson, Maria
Markkula, Andrea
Rose, Carsten
Ingvar, Christian
Jernström, Helena
Article History
Received: 16 November 2015
Revised: 11 May 2016
Accepted: 16 May 2016
First Online: 9 June 2016
Competing interests
: The authors declare no conflict of interest.