1. Section on Analytical BiochemistryLaboratory of Clinical ScienceNational Institute of Mental HealthBethesdaMaryland20892USA
2. Section on HistopharmacologyLaboratory of Clinical ScienceNational Institute of Mental HealthBethesdaMaryland20892USA
3. Department of Cell BiologyOsaka Bioscience InstituteOsaka565Japan
4. Pathobiology and Primatology LaboratoryCenter for Biological Evaluation and Research, Food and Drug AdministrationBethesdaMaryland20892USA