3.2. Analysis.
Comparison 3: Antiviral versus placebo/no treatment, Outcome 2: Change in vertigo frequency at 3 to < 6 months
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.