Table 4. Recurrence according EGFR expression for CTC positive patients.

EGFR1 = EGFR expression in CTCs before surgery. EGFR2 = EGFR expression in CTCs after surgery.

	Recurrence				n	p
	Yes		no
EGFR 1
+	9	34.6%	17	65.4%	26	1
-	1	33.3%	2	66.7%	3
EGFR 2
+	2	28.6%	5	71.4%	7	0.335
-	7	63.6%	4	36.4%	11

n = number of patients.