1. Rocky Mountain Poison and Drug Center, Denver Health and Hospital Authority, Denver, Colorado, USA; Department of Emergency Medicine, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA. Patrick.ng@rmpdc.org
2. Department of Emergency Medicine, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
3. Laser Microbeam and Medical Program, Beckman Laser Institute and Medical Clinic, Division of Pulmonary and Critical Care Medicine, Department of Medicine, University of California, Irvine, California, USA
4. Laser Microbeam and Medical Program, Beckman Laser Institute and Medical Clinic, USA
5. Department of Medicine, University of California, San Diego, La Jolla, California, USA
6. Rocky Mountain Poison and Drug Center, Denver Health and Hospital Authority, Denver, Colorado, USA; Department of Emergency Medicine, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA