1. Department of Psychobiology, University of California, Irvine 92717
2. Departments of Pediatrics and Neurology, University of California, Irvine, Medical Center Orange 92668
3. Veterans Administration Medical Center, Long Beach, California 90822, Department of Pathology, University of California, Irvine, Medical Center
4. Department of Neurology, University of Southern California, Los Angeles 90033