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.
Control specimens. A: Normal proliferative endometrial samples had no evidence of EPO when immunostained with the monoclonal antibody directed against EPO. B: Substitution of an irrelevant monoclonal antibody (negative control) for the anti-EPO antibody produced no staining of any of the tissues, including the endometriosis sample shown here.
