A team of Israeli (Weizmann Institute) and British scientists have devised a blood test that analyzes activity of three enzymes (OGG1, MPG and APE1) connected to DNA damage. They say it can “significantly improve current lung cancer risk prediction, assisting prevention and early detection.”
http://nocamels.com/2019/10/israel-british-scientists-blood-test-lung-cancer-screening/
http://www.weizmann.ac.il/WeizmannCompass/sections/briefs/dna%E2%80%99s-smoking-gun