Funding for this research was provided by:
Stockholms Läns Landsting
Text and Data Mining valid from 2020-05-01
Received: 27 August 2019
Accepted: 2 April 2020
First Online: 1 May 2020
Ethics approval and consent to participate
: The study was approved by the Stockholm regional ethics committee (2015/928–31/4). The study used registry data which is why patients did not give informed consent for this specific study, but this study only included patients that had given overall consent of their data being used in research.
: Not applicable.
: The authors declare that they have no competing interests.