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.
Scatter plot of the correlation between the serum levels of VEGF and MMP-9 in the (A) pretreatment and (B) postoperative NSCLC groups. VEGF, vascular endothelial growth factor; MMP-9, matrix metalloproteinase-9; NSCLC, non-small cell lung cancer.
