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.
Example of a biopsy from a laryngeal tumor showing a high expression in immunohistochemical staining for (A) pATM, (B) pChk2, and (C) p53. Original magnification 200x. [Color figure can be viewed in the online issue, which is available at www.laryngoscope.com.]
