Figure 3. Funnel plots were used to evaluate publication bias on CSS.
Begg’s test and Egger’s test were not significant indicating that no significant bias was observed on CSS (A and B).
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.