Funding for this research was provided by:
National Health and Medical Research Council (1124210)
Swedish Research Council for Working Life
Text and Data Mining valid from 2019-08-05
Received: 22 February 2019
Accepted: 18 July 2019
First Online: 5 August 2019
Ethics approval and consent to participate
: Ethics approval was obtained from the Stockholm Regional Ethics Committee. No consent was required as this study used anonymized registry data.
: Not applicable.
: The authors declare that they have no competing interests.