An official website of the United States government
Here's how you know
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.
Percentage changes in airway resistance (RL) and dynamic compliance (Cdyn) measures 1 and 20 min following aerosol challenge with treatment drugs in animals treated prior to antigen challenge or 1 min following drug treatment in animals treated after antigen challenge