Funding for this research was provided by:
HZ was supported by a UNSW Scientia Fellowship.
Received: 9 March 2021
Revised: 9 June 2021
Accepted: 30 June 2021
First Online: 12 July 2021
: The authors report no conflict of interest. HZ works at the Centre for Big Data Research in Health, UNSW Sydney, which has received funding from AbbVie Australia to conduct research, unrelated to the present study. AbbVie did not have any knowledge of, or involvement in, the present study.
: Individual consent from the participants was waived for this register-based study. Ethical approval of the study has been obtained from the Regional Ethical Review Board in Stockholm (reference number: 2014/129 - 31/4).
: Not applicable.