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.
Electron microscopical findings. (a) Normal appearance of the ileum in animals during the prepatent period. (b) Superficial epithelial loss in the cecum of animals during the patent period. (c) Superficial epithelial injury in the ileum of animals during the late patent period.
