1. Division of Health Services and Outcomes Research, Children’s Mercy Kansas City, Kansas City, Missouri, USA
2. Department of Pediatrics, University of Missouri-Kansas City School of Medicine, Kansas City, Missouri, USA
3. Enterprise Information Services, Cedars-Sinai Health System, Los Angeles, California, USA
4. Department of Pediatrics, Cedars-Sinai Medical Center, Los Angeles, California, USA
5. Department of Cardiology, Cedars-Sinai Medical Center, Los Angeles, California, USA
6. Department of Medicine, Cedars-Sinai Medical Center, Los Angeles, California, USA