Table 2.

Internal necrosis rate of the tumors (%).

Group	Day 4	Day 8	Day 12
Group A	0.38±0.22	0.48±0.28	0.59±0.26
Group B	0.55±0.30	0.57±0.33	0.69±0.25
Group C	0.70±0.14	0.66±0.12	0.83±0.06