1. Chemistry & Drug Metabolism Section, Intramural Research Program, National Institute on Drug Abuse, National Institutes of Health, Baltimore, MD 21224, USA
2. Program in Toxicology, University of Maryland Baltimore, Baltimore, MD 21201, USA
3. Forensic Toxicology & Chemistry Laboratory, Criminalistics Institute of Sao Paulo, Sao Paulo, SP, Brazil
4. Department of Sciences, John Jay College of Criminal Justice, City University of New York, New York, NY 10019, USA
5. Department of Psychiatry, University of Maryland School of Medicine, Baltimore, MD 21201, USA