Lorentzen, Veronica http://orcid.org/0000-0001-6165-6730
Fagermo, Kenneth
Handegård, Bjørn Helge
Skre, Ingunn
Neumer, Simon-Peter
Funding for this research was provided by:
Helse Nord RHF (8563 PFP 112-13)
Article History
Received: 30 September 2019
Accepted: 3 March 2020
First Online: 14 March 2020
Ethics approval and consent to participate
: The study was performed in compliance with the Helsinki Declaration for research on humans and was approved by the Regional Committees for Medical and Health Research Ethics (REC North). Reference number 2011/1937. All participants participated and consented according to the regulations in the research project, also with written parental consent for those under age 16 (REC North, Reference number 2011/1937).
: Not applicable.
: The last author received royalties from the publisher of the manual.