1. Rutgers University Robert Wood Johnson Medical School; New Brunswick New Jersey
2. Texas Children's Hospital, Baylor University College of Medicine; Houston
3. University of Michigan; Ann Arbor
4. Anne & Robert H. Lurie Children's Hospital of Chicago; Chicago Illinois
5. Boston Children's Hospital; Boston Massachusetts
6. Elsevier Research Intelligence; New York, New York
7. Emory University School of Medicine; Atlanta Georgia
8. University of Iowa Carver College of Medicine; Iowa City
9. Hofstra-North Shore-Long Island Jewish School of Medicine; North Shore, New York
10. Cincinnati Children's Hospital Medical Center and University of Cincinnati College of Medicine; Cincinnati Ohio
11. Emory University School of Medicine and Children's Healthcare of Atlanta; Atlanta Georgia
12. University of Toronto and the Hospital for Sick Children; Toronto Ontario Canada
13. Boston Children's Hospital and Brigham and Women's Hospital; Boston Massachusetts