Table 3.

RT-PCR results of CXCL12 and CXCR4 expression level in neck lymph nodes (IOD).

Group	n	CXCL12*	CXCR4**
Metastatic lymph nodes	7	0.935 ± 0.087	0.947 ± 0.042
Nonmetastatic lymph nodes	7	0.861 ± 0.047	0.396 ± 0.071

^* P > 0.05, ^** P < 0.05.