1. Department of Obstetrics, Gynecology, and Reproductive Sciences Yale University School of Medicine New Haven Connecticut
2. California Maternal Quality Care Collaborative Stanford California
3. Department of Obstetrics and Gynecology Stanford University School of Medicine Stanford California
4. California Perinatal Quality Care Collaborative Stanford California
5. Department of Pediatrics Stanford University School of Medicine Stanford California
6. Department of Biostatistics Yale University School of Public Health New Haven Connecticut
7. Laborists and Midwifery Section Yale Medicine New Haven Connecticut
8. Vidone Birthing Center Yale New Haven Hospital, Saint Raphael Campus New Haven Connecticut