[1] The University of Chicago,Department of Family Medicine
[2] Pritzker School of Medicine,Department of Obstetrics and Gynecology
[3] NorthShore University HealthSystem Research Institute,California Maternal Quality Care Collaborative
[4] The University of Chicago,Center for Healthcare Policy and Research and Department of Pediatrics
[5] Pritzker School of Medicine,Center for Healthcare Policy and Research and Department of Family and Community Medicine
[6] NorthShore University HealthSystem Research Institute,undefined
[7] Stanford University,undefined
[8] Stanford Medical School Office Building,undefined
[9] University of California Davis School of Medicine,undefined
[10] University of California Davis School of Medicine,undefined