1 University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA; Section of Emergency Medicine, USA; Children's Hospital Colorado, Aurora, Colorado, USA. Electronic address: George.wang@childrenscolorado.org.
2 University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA; Section of Emergency Medicine, USA; Children's Hospital Colorado, Aurora, Colorado, USA; Research Informatics, USA.
3 University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA; Children's Hospital Colorado, Aurora, Colorado, USA.
4 University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA; Children's Hospital Colorado, Aurora, Colorado, USA; Section of Adolescent Medicine, USA.
5 University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA; Section of Emergency Medicine, USA; Children's Hospital Colorado, Aurora, Colorado, USA.