Table 3. Efficacy of 5-FU and 5-FU+A1-R combination on chemo-resistant stem-like XPA1 tumors.

Treatment	Tumor weight (g)	P value
5-FU	5.982 ± 1.829	P = 0.039*
A1-R	3.518 ± 1.096	P < 0.001*
5-FU+A1-R	2.482 ± 0.722	P < 0.001*, P = 0.004**
Control	8.628 ± 1.560	―

^*Compared with control, **compared with 5-FU.