The University of Leicester, Leicester, United Kingdom
The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, United States
Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, United States
Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, United States
Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, United States
The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, United States
The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, United States
Ann & Robert H. Lurie Children's Hospital of Chicago, Chicago, Illinois, United States
Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, United States
Data Coordinating Center, Salt Lake City, Utah, United States
Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, United States
The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, United States
Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, United States
Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, United States