Pihl, Elsa
Skorpil, Mikael
Sköldenberg, Olof
Hedbeck, Carl Johan
Jonsson, Kenneth B.
Funding for this research was provided by:
AFA Försäkring
Centrum för idrottsforskning, CIF
Landstingets Ömsesidiga Försäkringsbolag, LÖF
Karolinska Institute
Article History
Received: 30 December 2022
Accepted: 6 February 2023
First Online: 16 February 2023
Declarations
:
: The study was approved by the national ethical review board (No. 2018/1261–31).
: All participants preformed a written informed consent in compliance with the Helsinki declaration prior to the study, including consent for publication of results and images. The guidelines of the Strengthening the Reporting of Observational Studies in Epidemiology statement were followed.
: The authors (EP, OS, MS, CJH and KBJ) declare no conflict of interest nor competing interests.