—not on behalf of my independent research. But I'm happy to address the question anyway.
The study was done by me and three colleagues through the think tank that I'm the CEO and founder of, the Canadian Health Policy Institute. All of the data sources are explicitly referenced in the study, and all the methodology is explicitly laid out in the study. We have an internal and an external review process, and then we publish our work and put it in the public domain ultimately for scrutiny by other academics and people in the policy community.