Funding for this research was provided by:
Sigrid Juséliuksen Säätiö
Novo Nordisk Fonden
Samfundet Folkhälsan
Academy of Finland
Lastentautien Tutkimussäätiö
Barncancerfonden
Article History
Received: 5 June 2020
Accepted: 10 November 2020
First Online: 19 November 2020
Ethics approval and consent to participate
: An ethical approval was obtained from the Research Ethics Committee of the Hospital District of Helsinki and Uusimaa (HUS/836/2018 Institutional Research Ethics Committee), and all study participants gave a written informed consent.
: Consents for publication were received from people participating in the study (written informed consent). Individual patients cannot be identified from the data shown.
: The authors declare that they have no competing interests.