1. Department of Pediatrics, University of Cincinnati College of Medicine, The Heart Institute, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH.
2. Department of Pediatrics, John’s Hopkins Children’s Hospital Medical Center, Baltimore, MD.
3. Congenital Heart Center, University of Michigan, Ann Arbor, MI.
4. School of Public Health, University of Michigan, Ann Arbor, MI.
5. Division of Pediatric Critical Care, Department of Pediatrics, Medical College of Wisconsin, Milwaukee, WI.
6. Department of Pediatrics, UT Southwestern Medical Center, Children’s Medical Center, Dallas, TX.
7. Indiana University School of Medicine, Riley Hospital for Children at Indiana University Health, Indianapolis, IN.