1. Research associate, State of New York, Division of Substance Abuse Services Laboratory, Brooklyn, N.Y. 11217, and research scientist, Department of Neuropathology and Neurotoxicology, State of New York, Psychiatric Institute, New York, N.Y. 10032, US.
2. Director of clinical pharmacology, State of New York, Division of Substance Abuse Services Laboratory, Brooklyn, N.Y. 11217, US.
3. Chief of psychiatric research, Department of Biological Psychiatry, State of New York, Psychiatric Institute, New York, N.Y. 10032, US.
4. Assistant commissioner and director, State of New York, Division of Substance Abuse Services Laboratory, Brooklyn, N.Y. 11217, US.