1. Laboratory of Neurochemistry (B.-J.Z., K.K., H.G.), National Institute of Mental Health, National Institutes of Health, Bethesda, Maryland 20892
2. Electron Microscope Facility (P.Z.), National Institute of Mental Health, National Institutes of Health, Bethesda, Maryland 20892
3. National Institute of Neurological Diseases and Stroke, and Section on Neural Gene Expression (A.I., W.S.Y.), National Institute of Mental Health, National Institutes of Health, Bethesda, Maryland 20892