EGFR and neoplasm: As per the four factors of AI eligibility, 113 patients were defined as AI‐ineligible, of which 51 patients had a history of tumor exposure in the bronchus or of producing bloody sputum, 17 had MVI, 45 had a history of CVD, and 16 had been treated with chemoradiotherapy before starting the EGFR‐TKI treatment.