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) - Fabrizio Stracci; Domenico Martinelli; Francesca Maria Anedda; Francesca Maria Anedda; Marta Caminiti; William Mantovani; Valentina Pettinicchio; Alessandra Sinopoli; Francesco Vitale; Roberta Siliquini; Walter Mazzucco (Frontiers Media S.A., 2024)