Funding for this research was provided by:
Stiftelsen Konung Gustaf V:s Jubileumsfond
Medicinska Fakulteten, Lunds Universitet
Alfred Österlunds Stiftelse
Greta och Johan Kocks stiftelser
Åke Wiberg Stiftelse
Received: 28 December 2017
Accepted: 28 March 2018
First Online: 5 April 2018
Ethics approval and consent to participate
: The study was approved by the Regional Ethical Review Board at Lund University, Sweden (Dnr 2011/341). Consecutive patients fulfilling inclusion criteria were invited to participate in the study. Oral and written information was provided to all subjects who were invited to participate, and written consent was obtained from each participant before enrolment.
: Not applicable.
: The authors declare that they have no competing interests.
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