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.
Box plot of duration in months spent at each stage between patients with treatment of riluzole and patient without treatment of riluzole (A); between patients with long-term treatment of riluzole and patient with short-term treatment of riluzole (B); between patients with early long-term treatment of riluzole and patient with late long-term treatment of riluzole (C). *P < 0.05.
