FIG. 4.
Urease activity of H. pylori in APM at different pHout values in the presence of 20 mM urea. Urease activity was measured by determination of urea in the medium as described by Rahmatullah and Boyde (23). OD, optical density.
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.