Funding for this research was provided by:
The Medical Research Council of Southeast Sweden (FORSS-466211)
Child and Youth Studies at University West (Non)
Text and Data Mining valid from 2020-03-30
Received: 6 September 2019
Accepted: 11 March 2020
First Online: 30 March 2020
Ethics approval and consent to participate
: The Regional Ethical Review Board in Linköping (D-nr 2013/402–31) approved this study. This research project has followed the ethical standards of the Helsinki Declaration of 1964 [CitationRef removed]. All participants were administered written information about the aim, utility and confidentiality of the study. Both the participants and their guardians gave written consent to participate. In order to achieve independent results and to maintain confidentiality, participants were informed that the answers would never reach the healthcare staff responsible for treatment. Consent for publication was obtained.
: Not applicable.
: The authors declare that they have no competing interests.