There are different types of lung cancer, including non-small cell lung cancer (NCCLC), which is the most common and affects the cells lining the surfaces of the airways, and small cell lung cancer (SCLC), which often begins in the lung.
Smoking is the most significant risk factor for developing lung cancer and is estimated to cause 85 percent of cases. Although treatment has come a long way in the last few decades and survival rates are improving, lung cancer remains one of the most common and deadliest types of cancer.

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