Ellingsen, Christian Lycke https://orcid.org/0000-0001-6176-8871
Ebbing, Marta
Alfsen, G. Cecilie
Vollset, Stein Emil
Article History
Received: 31 October 2017
Accepted: 9 December 2018
First Online: 24 December 2018
Ethics approval and consent to participate
: The study using registry data from 2005 to 2014 was approved by the Regional Committee for Medical Research Ethics. The query on data from 2015 was performed as part of the quality assurance of the Norwegian Cause of Death Registry and as such did not require further approval.
: Not applicable.
: The authors declare that there are no competing interests.
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