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. 2013 Jun 26;2013:496564. doi: 10.1155/2013/496564

Figure 2.

Figure 2

Forest plot, prolonged labor. Note: Sensitivity analyses for outcome (prolonged labor stage) and study type were not statistically significant. Data were missing in Essén et al. [36], and we did not succeed in obtaining data from the authors; thus, results from this study are not estimable.