The use of network meta-analysis in updating WHO living maternal and perinatal health recommendations.

"Competing interests: None declared."

"Funding: The authors received no specific funding to develop this article. Both the tocolytics and uterotonics recommendations were developed with financial support from USAID and the UNDP/UNFPA/UNICEF/WHO/World Bank Special Programme of Research, Development and Research Training in Human Reproduction (HRP), a co-sponsored programme executed by the World Health Organization. The donors did not participate in any decision related to the recommendation development process, including the composition of research questions, membership of the recommendation development groups, conducting and interpretation of systematic reviews, or formulation of the recommendations. The views of the funding bodies did not influence the content of the recommendations."