Haukeland, Yngvild Bjartveit http://orcid.org/0000-0001-9759-6944
Czajkowski, Nikolai Olavi
Fjermestad, Krister Westlye
Silverman, Wendy K.
Mossige, Svein
Vatne, Torun Marie
Article History
First Online: 6 June 2020
Compliance with Ethical Standards
:
: The authors declare that they have no conflict of interest.
: All procedures performed were in accordance with the ethical standards of the Regional Committees for Medical and Health Research Ethics (reference number 2011/2514) and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
: Written informed consent was obtained from the parents and oral consent was obtained from the children.