Funding for this research was provided by:
Academy of Finland (250704)
Signe ja Ane Gyllenbergin Säätiö (37-1977-43)
Yrjö Jahnssonin Säätiö (11486)
Life and Health Medical Fund (1-23-28)
The Swedish Cultural Foundation in Finland (15/0897)
Text and Data Mining valid from 2019-03-15
Received: 15 March 2018
Accepted: 27 February 2019
First Online: 15 March 2019
Ethics approval and consent to participate
: The Fin-HIT study protocol was approved by the Coordinating Ethics Committee of the Helsinki and Uusimaa Hospital District (decision number 169/13/03/00/10). Informed written consent was obtained from all children and from one legally responsible adult per each child (i.e. parent or legal guardian) according to the Helsinki Declaration.
: Not applicable.
: The authors declare that they have no competing interests.
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