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A). Flap losses (total and partial) in free-flap reconstructions, The size of the solid squares is inversely proportional to the variance of the study estimate. The diamond represents the fixed effects risk ratio and 95% confidence interval. B) Implant or Expander losses, The size of the solid squares is inversely proportional to the variance of the study estimate. The diamond represents the fixed effects odds ratio and 95% confidence interval.
