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One of two major types of lung cancer that can affect smokers and nonsmokers.

Non-small cell lung cancer is the more common of the two major types of lung cancer. Risk factors including smoking, secondhand smoke, exposure to toxins and family history.

Symptoms include a cough that doesn't go away, shortness of breath, coughing up blood and losing weight without trying.

Treatment includes surgery, chemotherapy, radiation therapy, targeted therapy and immunotherapy.