Am J Prev Med 2020 Oct 1. Epub 2020 Oct 1.
Department of Obstetrics, Gynecology and Reproductive Sciences, University of California San Francisco, San Francisco, California; Center for Microbiology Research, Kenya Medical Research Institute, Nairobi, Kenya; Department of Global Health, University of Washington, Seattle, Washington; Department of Obstetrics and Gynecology, University of Washington, Seattle, Washington.