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.
Mean and SD values of the VAS and mVAS for placebo and edrophonium injections for hemifacial spasm. SD: standard deviation, VAS: visual analog scale, mVAS: modified visual analog scale, *p indicates the difference in the VAS score between injections.
