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) Histological appearance of an ulcerative lesion of the transverse colon (hematoxylin and eosin staining, original magnification: 40×). (b) Immunohistochemical staining showed CMV-positive cells in the ulcerated lesion (original magnification: 400×).
