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Authors
Bjørnelv, Gudrun Maria Waaler https://orcid.org/0000-0003-4997-5426
Edwin, Bjørn
Fretland, Åsmund Avdem
Deb, Partha
Aas, Eline
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Funding
Funding for this research was provided by:
Helse Sør-Øst RHF (2014064)
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Article History
Received: 11 July 2019
Accepted: 29 November 2019
First Online: 13 February 2020
Ethics approval and consent to participate
: The Norwegian Ethics Committee and the Norwegian Data Protection Authority, in addition to all the registry owners, approved this study. Registry owners gave us administrative permission to access and use the data. Registry owners include the Norwegian Directorate of health (NPR [], KUHR [], IPLOS []), the Cancer Registry of Norway [], the National Institute of Public Health (the Norwegian Causes of Death Register []), and Statistics Norway (SSB, ).
: Not applicable.
: The authors declare that they have no competing interests.
