Crit Care Med 2016 Nov;44(11):e1111-e1117
1Department of Anesthesiology and Critical Care Medicine, The Children's Hospital of Philadelphia, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA. 2Department of Pediatrics, St. Louis Children's Hospital, Washington University in St. Louis School of Medicine, St. Louis, MO. 3Department of Anesthesiology and Critical Care Medicine, Bloomberg Children's Center, Johns Hopkins Hospital, Johns Hopkins University School of Medicine, Baltimore, MD. 4Department of Emergency Medicine, The Hospital of the University of Pennsylvania, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA.