1. Department of Pediatric (Section of Emergency Medicine), Children’s Wisconsin and Medical College of Wisconsin, Milwaukee, WI
2. Department of Pediatrics (Section of Neonatology), Children’s Hospital of Orange County and University of California Irvine, Orange, CA
3. Department of Pediatrics, University of Colorado School of Medicine and Children’s Hospital Colorado, Aurora, CO
4. Department of Pediatrics (Section of Emergency Medicine), University of Colorado School of Medicine and Children’s Hospital Colorado, Aurora, CO