Funding for this research was provided by:
The Sophies Minde Foundation and Østfold Hospital
Text and Data Mining valid from 2018-05-02
Received: 9 August 2017
Accepted: 19 April 2018
First Online: 2 May 2018
Ethics approval and consent to participate
: All patients received information about the study and gave written consent. The study was approved by the Norwegian Social Science Data Services and the Regional Committees for Medical and Health Research Ethics, Health Region South East.
: The authors declare that they have no competing interests.
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