Copyright ©The Author(s) 2019.
World J Gastroenterol. Jun 21, 2019; 25(23): 2961-2972
Published online Jun 21, 2019. doi: 10.3748/wjg.v25.i23.2961
Figure 6
Figure 6 Funnel plot for publication bias in all included studies. The empty circles represent the observed studies and empty and black-filled diamonds represent the overall random effects means and 95% confidence intervals of the observed studies.