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.
Comparison of urge to cough (UTC) ratings at increasing concentrations of capsaicin, healthy controls (HCs) compared to participants with TBI. On this scale, 1 = “no urge to cough” and 10 = “maximum urge to cough.” Participants with TBI were presented with an additional three presentations of 500 μM capsaicin, for which there is no HC comparison data.
