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.
CONSORT diagram.This diagram shows the patients screening and available sample size for each model. Abbreviations: CT, computed tomography; GTV, gross tumor volume; GTVp, GTV of the primary tumor; GTVn, GTV of the involved lymph nodes; MRI, magnetic resonance imaging.
