Graff, Heidi Jeannet http://orcid.org/0000-0001-5726-6991
Siersma, Volkert
Møller, Anne
Waldorff, Frans Boch
Modin, Frederikke Agerbo
Rytter, Hana Malá
Funding for this research was provided by:
Familien Hede Nielsens Fond
The Danish Concussion Center
Article History
Received: 16 June 2023
Accepted: 28 November 2023
First Online: 13 December 2023
Declarations
:
: The study was based on national and administrative registers and did not require any approval from the Ethics committee according to national regulations or consent from the participants. Thus, the approval for the study was waived by the Ethics committee the Danish National Center for Ethics [CitationRef removed] and informed consent was waived by the Ethics committee Danish National Center for Ethics [CitationRef removed]. All methods were carried out in accordance with relevant guidelines and regulations. The study was approved by the Danish Data Protection Agency (Datatilsynet), no. 05179—RH-2016–389.
: Not applicable.
: The authors declare no competing interests.