53 Given the number of outcomes, only forest plots of outcomes meeting at least two of three criteria are presented in the online document ( Supplementary data, Figs S1–9 ): those assessed by a large number of studies (≥5), with highly significant results and being a significant cause of maternal or child mortality in Africa. 31 , 33 Results of the literature search A total of 2579 titles and abstracts were identified.
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