If you don’t smoke, you’ve eliminated one of the biggest risk factors for developing lung cancer. But in the United States, about 10% to 20% of lung cancer diagnoses happen in people who have never smoked or have smoked fewer than 100 cigarettes in their lifetime.

Minnesota Oncology Warns Against Vaping During Lung Cancer Awareness Month

Biomarkers are proteins, hormones, or pieces of DNA that can be released by cancer cells or by your body in response to cancer.