Bladh, Marie
Sydsjö, Gunilla
Ekselius, Lisa
Vingård, Eva
Agnafors, Sara
Funding for this research was provided by:
Linköping University
Article History
Received: 25 August 2022
Accepted: 7 December 2023
First Online: 13 December 2023
Declarations
:
: The study has been approved by the ethical committee in Lund at Lund university in 1994 (LU439-93) and 1998 (LU124-98) (primary investigators were Marianne Cederblad and Börje Höök). The study has also received approval from the regional ethics committee in Linköping in 2007 (M51-07), 2015 (M131-31), 2018 (353 − 31) and 2020 (044 − 32) (primary investigators were Carl Göran Svedin and Gunilla Sydsjö). Prior to data collection all participants have received information regarding the study and completed an informed consent document. All methods were carried out in accordance with relevant guidelines and regulations or declaration of Helsinki.
: Not applicable.
: The authors declare no competing interests.