Thornes, Elisabeth https://orcid.org/0000-0002-8186-5270
Robinson, Hilde Stendal
Vøllestad, Nina Køpke
Article History
Received: 20 December 2017
Accepted: 24 May 2018
First Online: 15 June 2018
Ethics approval and consent to participate
: The study was approved by the Norwegian Ethical Committee (protocol number (REK: 2010/2907). All participating patients provided written informed consent.
: The authors declare that they have no competing interests.
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