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.
Immunohistochemical Analysis of HER2 in Breast Carcinomas. The photographs show (a) negative control showing no detectable HER2 immunoreactivity in which HER2 antibody has been replaced with isotype specific IgG. (b) Equivocal and (c) Positive expression (A-D, original magnification ×200).
