Figure 2.
Risk of bias evaluation in six studies on transcranial electrical stimulation for post-stroke dysphagia, according to Cochrane criteria (red, high risk; green, low risk).
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.