About cancer screenings and saving lives: measuring the effects of cancer screening programs through meta-analyses-A comment to the meta-analysis "Estimated Lifetime Gained With Cancer Screening Tests" by Bretthauer et al. (2023).

Competing Interests: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest. The author(s) declared that they were an editorial board member of Frontiers, at the time of submission. This had no impact on the peer review process and the final decision.