1. Laboratory of Neuropathology, Philadelphia General Hospital, and the Department of Neurology, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania; Laboratory of Clinical Science, National Institute of Mental Health, 9000 Rockville Pike, Bethesda, Maryland 20014; Neurology, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania, 19104
2. Laboratory of Neuropathology, Philadelphia General Hospital, and the Department of Neurology, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania; Neuropathology, Philadelphia General Hospital, Philadelphia, Pennsylvania, 19104