Turesson, Emma
Ivarsson, Kjell
Thorngren, Karl-Göran
Hommel, Ami
Article History
Received: 30 March 2019
Accepted: 17 December 2019
First Online: 26 December 2019
Ethics approval and consent to participate
: The study was approved by the Regional Ethical Review Board (ref. 2015/182). Upon registration in RIKSHÖFT the patients accept that their data may be used in research. No further approval from the patients has therefore been sought for this study. All data are presented on an aggregated level and the individual patient cannot be identified.
: Not applicable.
: The authors declare that they have no competing interests.