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.
Calculated sites of flow limitation in all the subjects at PEF. Clusters of same colored airways indicate regions that are distal to a flow limited airway. The color scale indicates the trachea (whole lung) flow at which the limited airway reached its maximum flow.
