"Preventive and Therapeutic effects of Metformin in Cancer: A Meta-Analysis of RCT and Cohort Studies" https://www.eurekaselect.com/article/145997 https://www.

"Preventive and Therapeutic effects of Metformin in Cancer: A Meta-Analysis of RCT and Cohort Studies" https://www.eurekaselect.com/article/145997 https://www.eurekaselect.com/article/145997 Conclusion: Metformin does not significantly prolong the overall survival and progressive-free survival of cancer patients, but it may effectively reduce the risk of cancer occurrence.