Figure 2.
(a-d) Microphotograph of histopathology showing respiratory epithelium with squamous metaplasia in duct epithelium (a,b,d: H and E, X10), (c: H and E, X40)
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.