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.
Receiver operating characteristic curve of the discrimination accuracy of the prediction model integrating two endoscopic findings (location and presence of dimpling or ulcer) and two endosonographic findings (homogeneity and anechoic spaces) adjusted for age and sex for differentiating gastrointestinal stromal tumors from leiomyomas. (A) Development set. (B) Internal validation set. AUC, area under the curve.
