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.
Hazard rate (HR) for tumor recurrence over time for node-positive (N+; solid lines) and node-negative (N-; dashed lines) with stratification according to (A) T factors, (B) adjuvant chemotherapy or surgery alone, (C) gender, and (D) degree of lymph node dissection.
