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. 2013 Apr 5;8(4):e60107. doi: 10.1371/journal.pone.0060107

Figure 3. The sensitivity analysis by omitting a single study under the random-effect method.

Figure 3

The circles and horizontal lines represents the pooled OR and 95% CI by omitting a certain study. The area of the circles reflects the weight (by sample size). The diamond represents the pooled OR and 95% CI by including all of studies.