1. Departments of Pediatrics,
2. Medicine, and
3. Orthopedics and Rehabilitation, School of Medicine and Public Health, University of Wisconsin-Madison, Madison, Wisconsin;
4. Department of Pediatrics, David Geffen School of Medicine and
5. RAND Health Care, RAND Corporation, Santa Monica, California;
6. Department of Health Policy and Management, Fielding School of Public Health, University of California, Los Angeles, Los Angeles, California;
7. Children’s Discovery and Innovation Institute, Mattel Children’s Hospital, Los Angeles, California; and
8. American Family Children’s Hospital, Madison, Wisconsin