1. Department of Psychiatry, University of Pittsburgh, Western Psychiatric Institute and Clinic, PA 15213 and Department of Biological Sciences, Mellon Institute, Carnegie Mellon University, Pittsburgh, PA 15213.
2. Cranberry Medical Arts Building 2, Evans City, PA 16033.
3. Mailman Research Center and Harvard Medical School, Belmont, MA 02178.
4. Department of Neurology and Psvchiatry, University of Pittsburgh, Pittsburgh, PA 15213.