Granlund, L
Ramnemark, A
Andersson, C
Lindkvist, M
Fhärm, E
Norberg, M http://orcid.org/0000-0003-2475-7131
Article History
Received: 26 January 2015
Revised: 28 August 2015
Accepted: 20 September 2015
First Online: 28 October 2015
Competing interests
: The authors declare no conflict of interest.