To determine the expression of CDCA3 in non-oncogene-driven EGFR wild-type LUAD NSCLC and EGFR mutant NSCLC, we examined protein levels by immunohistochemistry on a small-cohort tissue microarray of 27 cases containing 8 EGFR mutant cases. The gene discussed is EGFR; the disease is non-small cell lung carcinoma.