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.
Photomicrograph of a liver from a cat affected by chronic cholangiohepatitis, immunohistochemically stained for Ki-67 expression (40×). Arrow points to the dark brown intranuclear staining in a hepatocyte with positive Ki-67 expression. Case no. 12. DAB staining & hematoxylin counterstaining.
