Kjeldgård, Linnea
Stigson, Helena
Bergsten, Eva L.
Farrants, Kristin
Friberg, Emilie
Funding for this research was provided by:
Karolinska Institute
Article History
Received: 17 August 2022
Accepted: 10 February 2023
First Online: 20 February 2023
Declarations
:
: The study was conducted in accordance with the World Medical Association Declaration of Helsinki. Participant consent is generally not required in large register-based studies in the Nordic countries and was for this study waived by the Regional Ethical Review Board of Stockholm, Sweden, who approved of the project. All data were anonymized by the administrative authorities before delivered to the researchers.
: Not applicable.
: The authors declare that they have no competing interests.