Funding for this research was provided by:
European Research Council
Text and Data Mining valid from 2019-01-11
Received: 14 June 2018
Accepted: 28 December 2018
First Online: 11 January 2019
Ethics approval and consent to participate
: Informed consent to participate in the study was not deemed necessary according to national regulations. Ethical permission for the study was obtained from The Regional Ethical Review Board in Lund, Sweden (Dnr 2013/787).
: Not applicable.
: The authors declare no competing interests.
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