Fu et al.16 recruited 487 lung cancer patients who underwent testing for ALK rearrangement at Sun Yat‐sen University Cancer Center, and found that the ALK rearrangement rate was 9.0% (44/487), and that ALK‐rearranged NSCLC tended to occur in younger individuals who were either non‐smokers or light smokers with adenocarcinoma. This evidence concerns the gene ALK and lung cancer.