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Forest plot and pooled analysis of mean difference in the number of harvested lymph nodes between robotic and laparoscopic approaches. The mean difference in number of harvested lymph nodes is reported for each study (black square) along with its 95% confidence interval (CI) (horizontal lines). The size of the square represents the weighted contribution of each study, and the diamond in the last line represents the pooled estimate and its 95% CI (width of diamond).
