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.
Representative immunohistochemical staining for poorly differentiated lung squamous carcinoma (A). The tumor cells were immunohistochemically stained positive for glypican-1 (B), p40 (C), and cytokeratin 5/6 (D) but were negative for thyroid transcription factor-1 (E) and napsin A (F) (hematoxylin and eosin ×200).
