1. Lundquist Institute for Biomedical Innovation at Harbor-UCLA Medical Center, Torrance, California
2. Department of Pediatrics, Harbor-UCLA Medical Center and David Geffen School of Medicine, University of California, Los Angeles, Torrance
3. Department of Obstetrics and Gynecology, Harbor-UCLA Medical Center and David Geffen School of Medicine, University of California, Los Angeles, Torrance
4. Division of General Internal Medicine and Health Services Research, David Geffen School of Medicine, University of California, Los Angeles
5. Department of Health Policy and Management, Fielding School of Public Health, University of California, Los Angeles