Funding for this research was provided by:
Danmarks Frie Forskningsfond
Text and Data Mining valid from 2019-07-22
Received: 31 March 2019
Accepted: 15 July 2019
First Online: 22 July 2019
Ethics approval and consent to participate
: The Danish Data Protection Agency approved the data management. Approval by the Committee on Health Research Ethics was not necessary according to Danish law.Patient informed consent was obtained prior to inclusion.
: Not applicable.
: The authors declare that they have no competing interests.