Fig 1. Kaplan-Meier curve for biochemical recurrence-free survival and metastasis-free survival by the number of positive lymph nodes.
Blue line = one positive lymph node; green line = two or more positive lymph nodes.
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.