Figure 1. Patients of TB group were instructed to wear TB appliance.
A) The front view. B) The right view. C) The left view.
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.