Table 4.

Clinical characteristic of EGFR and K-RAS double mutations

Gender	Age (years)	Smoking history	EGFR in cytology	K-RAS mutation	K-RAS mutation types
Female	84	Never smoker	L858R	G12C	Transversion
Male	46	Unknown	T790M, G719S, L858R	G12C	Transversion
Male	42	Ever smoker	G719S	G12S	Transition
Female	41	Never smoker	L861Q, T790M	G12D	Transition