Funding for this research was provided by:
University Hospital of North Norway (NA)
Article History
Received: 2 June 2016
Accepted: 1 February 2017
First Online: 9 February 2017
Compliance with ethical standards
:
: E.K. received financial support from the Medical Clinic, University Hospital of North Norway, Tromsoe, Norway.
: The authors declare that they have no conflicts of interest.