Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Figure 1. Changes in serum VEGF concentrations after radical resection of the tumor (○ and following unresectable disease (□). Values are median (interquartile range). *Statistically significant differences versus preoperative values (Wilcoxon rank test).
