Bengtsen, Maria B.
Veres, Katalin
Nørgaard, Mette
Article History
Received: 9 May 2019
Revised: 4 November 2019
Accepted: 15 November 2019
First Online: 6 December 2019
Ethics approval and consent to participate
: The study was approved by the Danish Data Protection Agency, record number: 1-16-02-1-08.
: Not applicable.
: Data are available as presented in the paper. According to Danish legislation, our own approvals to use the Danish data sources for the current study do not allow us to distribute or make patient data directly available to other parties. Interested researchers may apply for data access through the Research Service at the Danish Health Data Authority. Up-to-date information on data access is available online (ExternalRef removed). Access to data from the Danish Health Data Authority requires approval from the Danish Data Protection Agency (ExternalRef removed). We do not have special access privileges to these data.
: The authors declare no competing interests.
: The study was supported by the Program for Clinical Research Infrastructure (PROCRIN), established by the Lundbeck Foundation and the Novo Nordisk Foundation, and the Danish Cancer Society. The funding sources had no involvement in the collection, analysis or interpretation of these data or in the decision to submit the article for publication.