[1] Ann & Robert H Lurie Childrens Hosp Chicago, Emergency Dept, Chicago, IL USA
[2] Rosalind Franklin Univ Med & Sci, Chicago, IL 60064 USA
[3] Northwestern Univ, Feinberg Sch Med, Emergency Med, Chicago, IL USA
[4] Northwestern Univ, Feinberg Sch Med, Pediat, Chicago, IL USA
[5] Rosalind Franklin Univ Med & Sci, Coll Nursing, 3333 N Green Bay Rd, N Chicago, IL 60064 USA