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.
FLAIR intensity in controls vs patients (including all ALS, flail arm, and PLS patients) stratified according to disease duration. All comparisons by independent samples t testing, two tailed. *P ≤ 0.05; **P ≤ 0.01; ALS, amyotrophic lateral sclerosis; FLAIR, fluid-attenuated inversion recovery; NS, nonsignificant; PLS, primary lateral sclerosis.
