Dahlman, Disa http://orcid.org/0000-0003-0507-8758
Li, Xinjun
Crump, Casey
Sundquist, Jan
Sundquist, Kristina
Funding for this research was provided by:
National Institute on Drug Abuse (R01DA030005)
Vetenskapsrådet (2020-01175, 2018-02400)
Medicinska Fakulteten, Lunds Universitet (ALF project grant)
Region Skåne (Primary Healthcare Management grant)
Lund University
Article History
Received: 10 March 2021
Accepted: 15 October 2021
First Online: 7 November 2021
Declarations
:
: All authors (Disa Dahlman, Xinjun Li, Casey Crump, Jan Sundquist, and Kristina Sundquist) declare that they have no conflict of interest.
: Not applicable.
: All procedures in the study were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. Ethical approval for the study was obtained from the Regional Ethical Review Board in Lund.
: Consent to participate was not obtained from the individuals in the registers used in this study.
: Consent for publication was not obtained from the individuals in the registers used in this study.