Funding for this research was provided by:
Percy Falks Stiftelse för Forskning Beträffande Prostata- och Bröstcancer (N/A)
Cancer and allergy foundation (N/A)
Govermental funding of clinical research within the NHS, Sweden (N/A)
Swedish breast cancer association (N/A)
Received: 22 November 2019
Accepted: 12 March 2020
First Online: 26 March 2020
Ethics approval and consent to participate
: The study was approved by the Regional ethical review board in Lund, Sweden (reference number 2015/505). All participants approved participation and signed informed consent.
: Not applicable
: The authors declare that they have no competing interests.