< Back to Article
Diagnostic Value of Circulating Chromogranin A for Neuroendocrine Tumors: A Systematic Review and Meta-Analysis
Fig 4
The funnel plots of publication bias.
Every point represents one study, and the line is the regression line. The funnel shape is symmetrical, which indicates no publication bias.
doi: https://doi.org/10.1371/journal.pone.0124884.g004