Funding for this research was provided by:
Gillbergska stiftelsen
Uppsala University
Article History
Received: 4 February 2021
Accepted: 19 April 2021
First Online: 30 June 2021
Declarations
:
: The study was approved by the regional ethics committee in Uppsala County (Dnr 2006/327; 2006/327/3). Verbal informed consent was obtained from parents and children and written informed consent was obtained from parents and patients older than 12 years.
: Not applicable.
: The authors declare that they have no competing interests.