Fig. 2 .
Receiver operating curve of pepsinogen I (PGI) (dashed line), PGI: PGII ratio (line) for the diagnosis of gastric cancer
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.