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.
(A) Positivity for activin A was observed in the cytoplasm of the tumor cells and in few stromal cells adjacent the tumor. (B) High power view revealed that tumor cells demonstrate variable expression of activin A even in the same tumor. (original magnification: A x100 and B x200).
