FIG. 3.
The total activity leaving the nebulizer assessed from (1) the difference in activity put into the nebulizer and that left after inhalation and (2) the sum of the activity accounted for in the body and exhalation filter.
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.