1. New York University School of Medicine, New York,
2. Children's Mercy Hospital Kansas City, Missouri
3. Brody School of Medicine, East Carolina University Pitt County Memorial Hospital, Greenville, North Carolina
4. Cleveland Clinic, Cleveland, Ohio
5. Mayo Clinic, Rochester, Minnesota
6. Department of Pediatrics, Section of Pediatric Emergency Medicine, Medical College of Wisconsin, Children's Hospital of Wisconsin, Milwaukee, Wisconsin