Winzer, Regina
Vaez, Marjan
Lindberg, Lene
Sorjonen, Kimmo
Funding for this research was provided by:
Karolinska Institute
Article History
Received: 8 March 2021
Accepted: 14 October 2021
First Online: 5 November 2021
Declarations
:
: The study has been approved by the Regional Ethical Review Board of the Stockholm Committee (No. 2009/1788-31/3), and informed consent was obtained from the participants. Parental consent from parents for adolescents ≥ 15 years is not required, due to Swedish legislation on ethical review of research on human beings (SFS 2003:460, Section 18). Informed consent was obtained from all participants. All methods have been carried out in accordance with relevant guidelines and regulations.
: Not applicable.
: The authors declare that they have no competing interests.