Table 1.

Incidence rate of lung and lymph node metastases of monoclonal HCC cell lines

	Lung metastasis	Lymph node metastasis	P value (Fisher’s exact test)
LM1-S3	8/8	0/8	0.0002
LM1-S4	8/8	0/8	0.0002
LM1-S5	8/8	0/8	0.0002
LM1-S11	6/8	0/8	0.0070
LnM1-S11	8/8	8/8	—
LnM1-S13	2/8	2/8	1.000

Forty-eight nude mice were divided randomly into 6 groups with 8 ones in each group. Qualitative variables were compared using Fisher's exact test. Kruskal-Wallis was used to analyze qualitative variables among these six cell lines