1. aDepartment of Pediatrics, UCLA David Geffen School of Medicine, Los Angeles, California
2. bPhilip R. Lee Institute for Health Policy Studies, University of California, San Francisco, San Francisco, California
3. cDepartments of Health Policy and Management
4. dJohns Hopkins University School of Nursing, Baltimore, Maryland
5. eDepartments of Medicine
6. fEpidemiology, Johns Hopkins University Bloomberg School of Public Health, Baltimore, Maryland
7. gDepartment of Epidemiology and Biostatistics
8. hUrban Health Collaborative, Drexel University Dornsife School of Public Health, Philadelphia, Pennsylvania
9. iRTI International, Research Triangle Park, North Carolina
10. jDepartment of Pediatrics, University of Maryland School of Medicine, Baltimore, Maryland
11. kPediatrics, Johns Hopkins University School of Medicine, Baltimore, Maryland