Funding for this research was provided by:
Text and Data Mining valid from 2018-08-13
Received: 15 February 2017
Accepted: 11 July 2018
First Online: 13 August 2018
Ethics approval and consent to participate
: The study was approved by the Linköping Regional Ethical Review Board in Linköping Dnr 2014/305–31. The Ethical Review Board approved that patients gave verbal consent rather than written. All included patients were given verbal information regarding the study and gave verbal informed consent. It was underlined that participation was voluntary, could be terminated at any time without giving a reason, and that not participating would in no way affect their future care. The patients were guaranteed confidentiality.
: Not applicable.
: The authors declare that they have no competing interests.
: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.