Table 4.

Comparisons of nucleotide substitution between EGFR mutation subtypes in the lung adenocarcinoma.

Substitution	Simple EGFR mutation (n = 46)	Compound EGFR mutation (n = 15)
C>T	6	29
A>G	3	0
G>A	17	51
C>G	1	0
G>C	4	2
A>T	0	1
A>C	0	1
Total	31	84