California Preterm Birth Initiative, University of California, San Francisco, San Francisco, CA, United States
Ribka Amsalu
Department of Obstetrics, Gynecology and Reproductive Sciences, Medical Center, University of California, San Francisco, San Francisco, CA, United States
Tabassum Firoz
Department of Medicine, Yale School of Medicine, New Haven, CT, United States
Isabelle L. Lange
Department of Infectious Disease Epidemiology, London School of Hygiene and Tropical Medicine, London, United Kingdom
Isabelle L. Lange
Department of Global Health and Development, London School of Hygiene and Tropical Medicine, University of London, London, United Kingdom
