Sandén, Gustav http://orcid.org/0000-0002-2519-8020
Svensson, Johan
Ljuslinder, Ingrid
Rutegård, Martin
Funding for this research was provided by:
Knut och Alice Wallenbergs Stiftelse
Umea University
Article History
Accepted: 12 January 2023
First Online: 26 January 2023
Declarations
:
: The Swedish Ethical Review Authority (dnr 2021–01416) approved this study.
: Informed consent from participants was waived by the review board and was therefore not obtained, as this is a retrospective study only, with no planned intervention; moreover, some of the participants have deceased, and any attempts to approach relatives for consent was deemed to incur more harm than good. In addition, all data is presented on a group level, thus making it impossible to identify individual patients.
: No material from other sources was included in this study.
: The authors declare no competing interests.