EGFR and adenocarcinoma: In adenocarcinomas, EGFR (60.9%), TP53 (37.7%) and KRAS (12.2%) were the top 3 frequently mutated genes in Chinese people, which is significantly different from Western people, as compared with the TCGA-LUAD data (TP53–47.1%, KRAS-25.0%, EGFR-11.9%).