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.
Squamous cell lung carcinoma with heterogeneous aberrant pRb expression (see Materials and Methods). Streptavidin-biotin peroxidase technique with Rb1 anti-pRb antibody (see Materials and Methods) and hematoxylin counterstain; magnification, ×125.
