Fig 4. Neutrophil elastase or EGFR staining was counterstained by alcian blue.
Red arrow indicated the degranulating goblet cells. Original magnification ×400 (Scale bar = 20 μm).
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.