Table 2. Efficacy of chemotherapeutic drugs and A1-R on stem-like and non-stem XPA1 tumors.

Treatment	Tumor weight of stem-like cells (g)	P value*	Tumor weight of non-stem cells (g)	P value*
5-FU	0.436 ± 0.283	N.S	0.060 ± 0.043	P = 0.028
CDDP	0.454 ± 0.310	N.S	0.376 ± 0.386	N.S
GEM	0.692 ± 0.354	N.S	0.696 ± 0.309	N.S
A1-R	0.178 ± 0.140	P = 0.012	0.070 ± 0.075	P = 0.011
Control	0.986 ± 0.539	―	0.948 ± 0.591	―

*Compared with control.