Table 3.

Continuous monitoring of serum VEGF levels in patients with gastric cancer before and after operation ($\stackrel{-}{x}\pm s$).

Group	Number	VEGF (pg/mL)			F	p value
		0 days	After 1–3 days	After 7 days
Operative patients	13	175.712 ± 81.329	117.797 ± 76.022	266.119 ± 112.218	29.002	<0.001