Berglund, Erik
Anderzén, Ingrid
Helgesson, Magnus
Lytsy, Per
Andersén, Åsa
Funding for this research was provided by:
Uppsala University
Article History
Received: 18 January 2024
Accepted: 16 December 2024
First Online: 21 December 2024
Declarations
:
: The initial intervention study was approved by the Regional Ethical Review Board of Uppsala on April 8, 2010 (Reg. no. 2010/088) following the Declaration of Helsinki. The long-term follow-up study was approved on April 12, 2020.
: All participants provided written informed consent to participate in the intervention study. By returning the questionnaire, participants were deemed to have given their informed consent to participate in the long-term follow-up study and for publication.
: The authors declare no competing interests.