1. RAND Corporation, Arlington, Virginia
2. Department of Pediatrics, University of Pittsburgh, Pittsburgh, Pennsylvania
3. Rady Children’s Hospital San Diego, San Diego, California
4. Children’s Hospital Orange County, Orange, California
5. UCLA Mattel Children’s Hospital, Los Angeles, California
6. Loma Linda University Health, Loma Linda, California
7. Cottage Children's Medical Center, Santa Barbara, California
8. UC Davis Children’s Hospital, Sacramento, California
9. Children’s Hospital Los Angeles, Los Angeles, California
10. Stanford Children’s Health, Stanford, California
11. Sutter Children’s Medical Center, Sacramento, California
12. Children’s Specialty Care Coalition, Sacramento, California
13. Department of Medicine, Boston University School of Medicine, Boston, Massachusetts