ROS1 and non-small cell lung carcinoma: Because the FDA has recently approved crizotinib as a TKI to ROS1 rearrangement of NSCLC, we consider that the patients potentially harboring ROS1 rearrangement can be recruited by preliminary screening, therefore, more patients can receive TKI therapy, and the correlation between fusion types and TKI response or histopathology can be analyzed.