1. Assistant Director and Research Instructor of Pharmacology and Toxicology; and Director, and Professor of Pharmacology and Toxicology, respectively; Center for Human Toxicology, University of Utah, 417 Wakara Way Suite 290 Salt Lake City, UT 84108, US.
2. Chemist/Toxicologist and Alcohol Program Coordinator, respectively, National Transportation Safety Board, Washington, DC, US.
3. Research Psychologist, National Institute on Drug Abuse, Rockville, MD, US.
4. Executive Director, President's Drug Advisory Council, Washington, DC, US.
5. President, Transportation Safety Associates, Takoma Park, MD, US.
6. University of Arkansas College of Medicine, Little Rock, AR, US.