Berg, Helen
Steinsbekk, Aslak
Funding for this research was provided by:
Norges Forskningsråd (260370)
Article History
Received: 15 January 2020
Accepted: 1 April 2020
First Online: 22 April 2020
Ethics approval and consent to participate
: All ordinary procedures were followed to ensure ethics and data security. The participants were informed both in writing and orally of their rights and the purpose of the study and consent by sharing their data. The study was approved by the Norwegian Centre for Research Data (NSD, reference number 535088).
: Not applicable.
: The authors declare that they have no competing interests.