Funding for this research was provided by:
The Kamprad family foundation, Växjö, Sweden
Text and Data Mining valid from 2018-12-01
Received: 11 June 2018
Accepted: 16 November 2018
First Online: 3 December 2018
Ethics approval and consent to participate
: Ethical approval was granted by the Research Ethical Review Board in Umeå, Sweden, (Dnr 02–054). Written informed consent was obtained from all patients in the study.
: Not applicable
: The authors declare that they have no competing interests.
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