Hasting, Rachel L.
Merkus, Suzanne L.
Hanvold, Therese N.
Kristensen, Petter
Gran, Jon Michael
Mehlum, Ingrid S.
Article History
Received: 28 September 2021
Accepted: 21 January 2022
First Online: 4 February 2022
Declarations
:
: Ethical approval was obtained from the South-East A Regional Committee for Medical and Health Research Ethics (case number 17344). The requirement for informed consent was waived by the Regional Committee for Medical and Health Research Ethics in accordance with Section 35 of the Norwegian Health Research Act. All data were handled and processed in accordance with the ethical standards of the national research ethics committee.
: Not applicable, data is retrieved from national registries.
: The authors declare that they have no competing interests.