Function of oval cells in hepatocellular carcinoma in rats

Table 1 Number of cancerous nodes and cancer nodes area in rat liver (mean ± SD, n = 8)

t/wk	Cases of hepatic cancer		Number of cancerous		Area of cancer nodes (mm2)
	A	B	A	B	A	B
2-4	0	0	0	0	0	0
6-8	0	0	0	0	0	0
10-12	2	0	4	0	9.5 ± 8.2	0
14-16	6	2	15	5	10.7 ± 8.7	5.8 ± 4.5a
18-20	8	4	17	9	11.4 ± 8.9	8.5 ± 7.6
22-24	8	4	16	10	11.2 ± 9.3	8.6 ± 7.3

^aP < 0.05 vs group A; A: cancer- induction group; B: intervention group.