Rønneberg, Vibeke http://orcid.org/0000-0002-9113-2572
Torrance, Mark http://orcid.org/0000-0002-5305-4315
Uppstad, Per Henning http://orcid.org/0000-0002-5775-9830
Johansson, Christer http://orcid.org/0000-0003-3715-3425
Funding for this research was provided by:
Norges Forskningsråd (213534)
Article History
Received: 25 April 2021
Accepted: 1 December 2021
First Online: 8 January 2022
Declarations
:
: The third party ethical oversight agency in Norway, Norwegian Social Science Data Service, has approved the study. Furthermore, the project follows the ethical guidelines provided by the National Committee for Research Ethics in the Social Science and Humanities.
: Informed consent was obtained from the parents prior to their child’s participation.