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. Forensic Toxicology and Chemistry Laboratory; Criminalistics Institute of Sao Paulo; Sao Paulo SP Brazil
4. Division of Workplace Programs, Substance Abuse Mental Health Services Administration; Department of Health and Human Services; Rockville MD USA
5. Department of Psychiatry; University of Maryland School of Medicine; Baltimore MD USA