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.
Forest plot of the efficacy outcomes (A- ≥3-point improvement from baseline in weekly mean WI-NRS score, B- ≥4-point improvement from baseline in weekly mean WI-NRS score, C- patient global impression of change). RR: risk ratio; CI: confidence interval.
