1. Department of Community Health, School of Arts and Sciences, Tufts University, Medford, Massachusetts, USA.
2. Department of Community Medicine and Public Health, Maternal Health Epidemiology and Data Synthesis Unit, Center for Black Maternal Health and Reproductive Justice, Tufts University School of Medicine, Boston, Massachusetts, USA.
3. Department of Public Health and Community Medicine, Tufts University School of Medicine, Boston, Massachusetts, USA.