Figure 4.
OCT pictures of a right internal nasal valve (left: under normal conditions, second from left: during forced inspiration, second from right: with external pressure over the INV area, right after application of nasal decongestant)
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.