In support of these findings, most EGFR-mutated lung adenocarcinomas from The Cancer Genome Atlas (TCGA) data set (7 of 9 paired lung adenocarcinoma and normal lung tissues) or from previous reports (12 of 13 paired lung adenocarcinoma and normal lung tissues; reported in refs 23, 24) had lower ZEB1 compared with paired normal lung tissues (Supplementary Fig. 1b,c). The gene discussed is EGFR; the disease is lung adenocarcinoma.