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. Haematoxylin and eosin (H&E) staining of pituitary tumor (40×); B. The Ki-67 index was greater than 5% (40×); C. Diffuse and strong nuclear p53 staining (arrow) was observed in 90% of tumor cells (40×); D. 90% of tumor cells were positive for ACTH (40×).
