Language: system for communicating ideas and feelings using sounds, gestures, signs, or marks.
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.
Due to current HHS and NIH restructuring, the information provided on nidcd.nih.gov is not being updated currently. Please refer to nih.gov.