Funding for this research was provided by:
Greta och Johan Kocks stiftelser
Skåne University Research Funding
Alfred Österlunds Research Foundation
King Gustav V 80-years Foundation
Received: 21 November 2017
Accepted: 10 January 2018
First Online: 7 February 2018
Ethics approval and consent to participate
: The study was approved by the Regional Ethical Review Board in Lund, Sweden (#2012/4, #2014/748) and written informed consent was obtained for all subjects prior to inclusion.
: Not applicable.
: The authors declare that they have no competing interests.
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