Funding for this research was provided by:
Kræftens Bekæmpelse (R79-A5204)
Health Research Fund of Central Denmark Region (A1449)
P. Carl Petersens Fond (18072)
Dansk Kræftforskningsfond (ID20823)
Knud og Edith Eriksens Mindefond (62786)
Received: 7 May 2019
Accepted: 20 June 2019
First Online: 4 July 2019
Ethics approval and consent to participate
: The study was approved by the institutional review board (Central Denmark Region Committees on Health Research Ethics), and all subjects signed a written informed consent.
: Not applicable.
: The authors declare that they have no competing interests.