1. Investigator, UCLA Integrated Substance Abuse Programs, Los Angeles, CA
2. Medical Director, Friends Research Institute, Baltimore, MD
3. Research Scientist, Friends Medical Research Institute, Inc., Baltimore, MD
4. Project Director, UCLA Integrated Substance Abuse Programs, Los Angeles, CA
5. Research Associate, UCLA Integrated Substance Abuse Programs, Los Angeles, CA
6. Professor-in-Residence, UCLA Integrated Substance Abuse Programs, Los Angeles, CA
7. Director of Research, CODA, Inc., Portland, OR
8. Director of Research and Training, Bay Area Addiction Research & Treatment, San Francisco, CA
9. Assistant Director, National Institute on Drug Abuse, Center for the Clinical Trials Network, Bethesda, MD
10. Executive Director, Hartford Dispensary, Manchester, CT
11. Professor and Founding Director, UCLA Integrated Substance Abuse Programs, Los Angeles, CA