You have proper studies of cancer increases. No mention of PFCs. This one is particularly readable and as credible as they get: https://bmjoncology.bmj.com/con

You have proper studies of cancer increases. No mention of PFCs. This one is particularly readable and as credible as they get: https://bmjoncology.bmj.com/content/2/1/e000049 https://bmjoncology.bmj.com/content/2/1/e000049