EGFR and neoplasm: Compared with EGFR non-mutants, in EGFR mutants, women (versus men), ND-2a-1 (versus ND2a-2), smaller total tumor size of ≤3 cm (versus >3 cm), nodule with GGO (versus pure solid nodule), pathological stage IA (versus IB), pleural indentation-negative (versus positive), and vascular invasion-negative (versus positive) were significantly frequent.