Kraby, Maria Ryssdal
Valla, Marit
Opdahl, Signe
Haugen, Olav Anton
Sawicka, Joanna Ewa
Engstrøm, Monica Jernberg
Bofin, Anna Mary http://orcid.org/0000-0002-8111-4338
Funding for this research was provided by:
The Central Norway Health Authority (46030001)
Article History
Received: 28 May 2018
Accepted: 29 July 2018
First Online: 14 August 2018
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. Approval for this study, including dispensation from the requirement of patient consent, was granted by the Regional Committee for Medical and Health Sciences Research Ethics (REK, Midt-Norge, Ref. nr: 836/2009).