1. Department of Radiology, Cincinnati Children's Hospital Medical Center, 3333 Burnet Ave, Cincinnati, OH 45229.
2. Department of Radiology, University of Cincinnati College of Medicine, Cincinnati, OH.
3. Center for Health Care Data and Department of Management, Policy, & Community Health, UTHealth School of Public Health, Houston, TX.
4. University of Missouri School of Medicine, Kansas City, MO.
5. Department of Radiology, Children's Mercy Kansas City, Kansas City, MO.
6. Division of Epidemiology, University of Texas Health Science Center, UTHealth School of Public Health, Houston, TX.
7. The University of Texas MD Anderson Cancer Center, Houston, TX.
8. University of Texas Health Science Center, UTHealth School of Public Health, Houston, TX.