Fig. 3.
Funnel plot of 11C-Methionine studies included in this meta-analysis. The distribution indicates a publication bias of small and most likely irrelevant studies
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.