Table 1.

IC50 (µmol/l) of control and treatment group

Groups	IC50	95% CI
NC group	10.43 ±1.64	6.35-12.52
48-hour group	4.70 ±0.78	2.76-6.64
72-hour group	3.63 ±0.86	1.15-5.98

The IC50 of GEFITINIB was calculated based on cell viability and shown as mean ± SD. All experiments were performed in triplicate