1. Division of Safety Research; National Institute for Occupational Safety and Health; Morgantown West Virginia
2. Division of Safety and Hygiene; Ohio Bureau of Workers’ Compensation; Columbus Ohio
3. Division of Surveillance, Hazard Evaluations, and Field Studies; National Institute for Occupational Safety and Health; Cincinnati Ohio
4. Economic Research Support Office, Office of the Director; National Institute for Occupational Safety and Health; Cincinnati Ohio