1. Division of Surveillance, Hazard Evaluations, and Field Studies, National Institute for Occupational Safety and Health (NIOSH), Cincinnati, Ohio
2. Division of Applied Research and Technology, NIOSH, Cincinnati, Ohio
3. Firefighter Safety Research Institute, Underwriters Laboratories, Columbia, Maryland
4. Health and Exercise Sciences Department, Skidmore College, Saratoga Springs, New York
5. Illinois Fire Service Institute, University of Illinois at Urbana-Champaign, Urbana-Champaign, Illinois