Funding for this research was provided by:
Aarhus University (n.a.)
Danish Cancer Society (n.a.)
Primary Health Care Research Fundation of the Central Denmark Region (n.a.)
Danish General Practice Fund (n.a.)
Received: 27 May 2019
Accepted: 19 November 2019
First Online: 5 December 2019
Consent for publication
: Not applicable.
: The authors declare that they have no conflict of interest.