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 staining of p21 in control and 4-HC-treated ovaries over time. Brown-stained cells are p21-positive. Each one involves an overview of the ovary and the magnification of the cortex area marked by a square in the overview above.
