1. El Paso Maternal Fetal Medicine, Las Palmas Del Sol Healthcare, El Paso, TX, USA
2. University of Connecticut School of Medicine, UConn Health, Farmington, CT, USA
3. Department of Obstetrics and Gynecology, Howard University, Washington, DC, USA
4. University of Connecticut, Microbial Analysis Research Services, Storrs, CT, USA
5. Division of Maternal-Fetal Medicine, University of Michigan, Ann Harbor, MI, USA