1. Department of Pediatrics, UCLA (University of California, Los Angeles) Mattel Children's Hospital, UCLA
2. Department of Medicine, David Geffen School of Medicine, UCLA
3. Department of Medicine, Veterans Affairs Greater Los Angeles Healthcare System, Los Angeles, California
4. Fielding School of Public Health, Department of Health Policy and Management, UCLA
5. Department of Medicine Statistics Core, David Geffen School of Medicine, UCLA
6. Department of Pediatrics, University of Rochester School of Medicine and Dentistry, Rochester, New York
7. Department of Pediatrics, Children’s Mercy, Kansas City, Missouri
8. Department of Information Services and Solutions, UCLA Health System, Los Angeles, California