| AARDA | The American Autoimmune Related Diseases Association |
| CI | Calculus index |
| GI | Gingival index |
| PI | Plaque index |
| RA | Rheumatoid arthritis |
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.