Norman, Åsa
Kjellenberg, Karin
Torres Aréchiga, Diana
Löf, Marie
Patterson, Emma https://orcid.org/0000-0003-1208-0936
Article History
Received: 17 October 2019
Accepted: 22 April 2020
First Online: 27 May 2020
Ethics approval and consent to participate
: The study was conducted in accordance with the Helsinki Declaration. Ethical approval was granted by the Regional Ethical Review Board in Stockholm, Sweden (2012/877–31/5) in June 2017. Parents provided written informed consent.
: Not applicable.
: The authors declare that they have no competing interests.