1 From the Department of Anesthesiology and Critical Care Medicine, The Children's Hospital of Philadelphia, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania.
2 Department of Anesthesiology, Pain, and Perioperative Medicine, The George Washington University School of Medicine, Children's National Hospital, Washington, District of Columbia.
3 Department of Anesthesiology, M Health Fairview Masonic Children's Hospital, University of Minnesota, Minneapolis, Minnesota.
4 Division of Pediatric Anesthesiology, Department of Anesthesiology, Medical College of Wisconsin, Children's Wisconsin Surgicenter, Milwaukee, Wisconsin.
5 Department of Anesthesiology, Westchester Medical Center, Maria Fareri Children's Hospital, Valhalla, New York.
6 Division of Pediatric Anesthesiology, Department of Anesthesiology, St. Louis Children's Hospital, Washington University in St. Louis School of Medicine, St. Louis, Missouri.
7 Division of Pediatric and Ambulatory Anesthesiology, Emory University School of Medicine, Emory + Children's Pediatric Institute, Surgery Center, Children's Healthcare of Atlanta, Atlanta, Georgia.