Fig. 5.
Pre- and post-operative pure tone audiometry (PTA). (A) Preoperative PTA showed decrease in the right hearing threshold at 0.25, 0.5, and 4 kHz. (B) Postoperative PTA showed improvement at both the lower and higher tone hearing thresholds.
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.