Figure 2.
Kaplan-Meier survival curves for patients with clinical stage I-III esophageal cancer stratified by center esophagectomy volume as grouped in quartiles (Q1–4). The p-value represents the result of the log-rank test.
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.