1. Departments of Pediatrics, Neurology, Anesthesiology and Critical Care Medicine, and Biostatistics Johns Hopkins University School of Medicine Baltimore Maryland USA
2. Department of Pediatrics Children's Hospital Colorado Aurora Colorado USA
3. Department of Pediatrics Vanderbilt University Medical Center Nashville Tennessee USA
4. Department of Pediatrics, Children's Hospital of Philadelphia University of Pennsylvania Philadelphia Pennsylvania USA
5. Department of Pediatrics University of California San Francisco California USA
6. Department of Pediatrics Johns Hopkins All Children's Hospital St. Petersburg Florida USA
7. Department of Pediatrics Medical College of Wisconsin Milwaukee Wisconsin USA
8. Department of Pediatrics, Vagelos College of Physicians and Surgeons Columbia University New York New York USA
9. Department of Pediatrics Boston Children's Hospital Boston Massachusetts USA
10. Department of Pediatrics, Baylor College of Medicine Texas Children's Hospital Houston Texas USA
11. Department of Pediatrics University of Washington School of Medicine Seattle Washington USA
12. Departments of Biostatistics and Bioinformatics, Department of Pediatrics, Duke Clinical Research Institute Duke University Durham North Carolina USA
13. Department of Neurology, Johns Hopkins School of Medicine BIOS Clinical Trials Coordinating Center (CTCC) Baltimore Maryland USA