Table 3.

Correlation of CXCR4, CCR7 and EGFR

Variable	Rho	P value
CXCR4 cytoplasmic and EGFR	0.255	<0.001**
CXCR4 nuclear and EGFR	0.046	0.515
CXCR4 cytoplasmic and CCR7	0.383	<0.001**
CXCR4 nuclear and CCR7	0.188	0.008**
CCR7 and EGFR	0.186	0.008**

The correlation between every two biomarkers was tested by Spearman's rank correlation test. *P < 0.05, **P < 0.01