Received: 3 May 2020
Accepted: 2 October 2020
First Online: 15 October 2020
Ethics approval and consent to participate
: Institutional approval was obtained from the Health Research Ethics Board of Alberta’s Cancer Committee to access, use, and analyse the clinical data for this study. Because this represented a secondary use of retrospective data for which identifiers were removed, waiver of consent was granted.
: Not applicable.
: The authors declare that they have no competing interests” in this section.