Funding for this research was provided by:
Canadian Centre for Applied Research in Cancer
Canadian Cancer Society Research Institute
Received: 11 December 2018
Accepted: 31 May 2019
First Online: 7 June 2019
Ethics approval and consent to participate
: This was a reanalysis of the data from a published paper, so ethics approval was not sought by the research ethics boards of participating institutions.
: Not applicable.
: The authors declare that they have no competing interests. The authors take responsibility for all aspects of the study including design, data acquisition, analysis, interpretation, and drafting of the article.