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.
Kaplan-Meier survival curves for patients stratified by tumor (T), node (N) classifications. T staging in the 7th edition staging system (A), T staging in the 6th edition staging system (B), N staging in the 7th edition staging system (C), N staging in the 6th edition staging system (D). UICC-AJCC, Union for International Cancer Control–American Joint Committee on Cancer; TNM, tumor, node, metastasis.
