Ruud, Torleif http://orcid.org/0000-0002-4821-1267
Drake, Robert E. http://orcid.org/0000-0002-5180-547X
Šaltytė Benth, Jūratė http://orcid.org/0000-0003-4199-2272
Drivenes, Karin http://orcid.org/0000-0003-4550-8740
Hartveit, Miriam http://orcid.org/0000-0002-7143-2236
Heiervang, Kristin http://orcid.org/0000-0003-4553-8771
Høifødt, Tordis S.
Haaland, Vegard Ø. http://orcid.org/0000-0002-5455-9163
Joa, Inge http://orcid.org/0000-0002-5516-2336
Johannessen, Jan Olav http://orcid.org/0000-0001-7740-8168
Johansen, Karl Johan
Stensrud, Bjørn
Woldsengen Haugom, Espen http://orcid.org/0000-0002-6953-7987
Clausen, Hanne http://orcid.org/0000-0003-3282-6918
Biringer, Eva http://orcid.org/0000-0003-0933-1079
Bond, Gary R. http://orcid.org/0000-0003-1587-9823
Funding for this research was provided by:
Helse Sør-Øst RHF (2015106)
Akershus University Hospital
Article History
Accepted: 7 April 2021
First Online: 19 April 2021
Declarations
:
: All authors declare that they have no conflict of interest.
: The Regional Committee for Medical and Health Research Ethics in Southeastern Norway (Reg. No. REK 2015/2169) and the data protection officer for each health trust approved the study, which followed the principles in the Declaration of Helsinki.