Funding for this research was provided by:
Nederlandse Organisatie voor Wetenschappelijk Onderzoek (91716453)
Received: 28 May 2020
Accepted: 26 October 2020
First Online: 10 November 2020
Ethics approval and consent to participate
: The present study was approved by the Ethical Committee in Stockholm, Karolinska Institutet, 2014/1995–31/4. All participants and guardians provided their written informed consent before any study procedures were performed.All the patients and their guardians signed an informed consent that their personal information would be coded, and that the study results could be published using this code.
: Not applicable.
: The authors declare that there is no conflict of interest.