1. Department of Pediatrics, University of Colorado Denver, Aurora, Colorado
2. Department of Pediatric Pulmonology, The Breathing Institute at Children’s Hospital Colorado, Aurora, Colorado
3. Department of Pediatrics, Pediatric Critical Care Medicine, Baylor College of Medicine, Houston, Texas;
4. Medical Toxicology Branch, U.S. Army Medical Research Institute of Chemical Defense, Aberdeen Proving Ground, Aberdeen, Maryland