1. Chemistry and Drug Metabolism Section, IRP; National Institute on Drug Abuse, National Institutes of Health; Baltimore MD USA
2. Program in Toxicology; University of Maryland Baltimore; Baltimore MD USA
3. Currently at Department of Sciences, John Jay College of Criminal Justice; City University of New York; New York NY USA
4. Currently at Forensic Toxicology and Chemistry Laboratory; Criminalistics Institute of São Paulo; São Paulo SP Brazil
5. Division of Workplace Programs, Substance Abuse Mental Health Services Administration; Department of Health and Human Services; Rockville MD USA
6. Currently at Department of Psychiatry; University of Maryland School of Medicine; Baltimore MD USA