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Authors
Abrahamsson, Hanna
Meltzer, Sebastian
Hagen, Vidar Nyløkken
Johansen, Christin
Bousquet, Paula A.
Redalen, Kathrine Røe
Ree, Anne Hansen https://orcid.org/0000-0002-8264-3223
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Funding
Funding for this research was provided by:
Helse Sør-Øst RHF (2015033, 2018054, 2016050)
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Article History
Received: 16 December 2020
Accepted: 27 April 2021
First Online: 11 May 2021
Declarations
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: This study was approved by the Regional Committee for Medical and Health Research Ethics of South-East Norway (reference number REK 2013/152) and the Institutional Review Board at Akershus University Hospital (reference number 12–106), the latter providing the administrative permission on 6 February 2013 to access the raw data from the study. The study was performed in accordance with the Declaration of Helsinki. Written informed consent was required for study participation.
: Not applicable.
: The authors declare that they have no competing interests.
