| Helicobacter pylori infection is a major etiological factor in gastric adenocarcinoma. |
| Quality of evidence: high. Recommendation: strong. |
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.