1. Monroe Carell Jr Children’s Hospital at Vanderbilt, Nashville, Tennessee;
2. Department of Pediatrics, School of Medicine, Vanderbilt University, Nashville, Tennessee;
3. Adult and Child Consortium for Health Outcomes Research and Delivery Science and
4. Children’s Hospital Colorado, Aurora, Colorado; and
5. Department of Epidemiology, Colorado School of Public Health, Aurora, Colorado
6. Department of Pediatrics, School of Medicine, University of Colorado Anschutz Medical Campus, Aurora, Colorado