Clinical characteristics of non-small cell lung cancer patients with EGFR mutations and ALK&ROS1 fusions.

EGFR mutations were more likely to occur in non-smoking, stage III-IV, and female patients with lung adenocarcinoma, whereas ALK&ROS1 gene fusions were more likely to occur in young patients with lung adenocarcinoma. Emphysema was less common in patients with EGFR mutations.