Figure 3.
Funnel plot. (A) VAS at 4 weeks; (B) ODI at 4 weeks; (C) VAS at 3 months; (D) ODI at 3 months;(E) VAS at 6 months; (F) ODI at 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.