Table 3.

Summary of immunohistochemistry and DNA sequencing results

(A) L858R mutation
IHCDNA sequencing
L858RWtFailed
L858R (+)2422
L858R (−)219325
(B) Exon 19 deletion
IHCDNA sequencing

dEGFR
Wt
Failed
dEGFR (+)2301
dEGFR (−)319623