Overexpression of ATG16‐L1 Ex8 was also found in gefitinib‐resistant clones generated from HCC827 (HCC827 GR1/GR2), another lung cancer cell line expressing the EGFR‐TKI–sensitizing Del19 mutation (Fig. 1D), and in PC9‐derived clones that had been rendered resistant to the 2nd generation EGFR‐TKI Dacomitinib (PC9 DR1/DR2) (Fig. 1E). The gene discussed is EGFR; the disease is lung carcinoma.