1. Psychopharmacology Research Laboratory, Veterans Administration Hospital, Sepulveda, California 91343
2. Department of Biological Chemistry, Center for Health Sciences, University of California, Los Angeles (UCLA)
3. Research Service, Veterans Administration Center, Los Angeles
4. Department of Neurology, Reed Neurological Research Center, University of California (UCLA)
5. Department of Psychiatry, University of Alberta, Edmonton, Alberta, Canada