Funding
This work was supported by a grant from the Joint Global Health Trials scheme of the Department of Health and Social Care, the Foreign, Commonwealth and Development Office, the Medical Research Council, and the Wellcome Trust (MR/S004971/1) awarded to JEL. A grant from the Eunice Kennedy Shriver National Institute of Child Health and Human Development of the National Institutes of Health (K23HD092611) awarded to MMM also supported this study. The content is solely the responsibility of the authors and does not necessarily represent the official views of the National Institutes of Health or other institutions with whom the authors are affiliated. The funders played no role in study design; collection, analysis, and interpretation of data; manuscript writing; or in the decision to submit for publication.