1. UCSF, Neurology; 505 Parnassus Avenue Box 0114 M-798 San Francisco California USA 94143
2. Department of Neurology; Kaiser Permanente; San Francisco California USA
3. Departments of Medicine and Physiology; UCSF Medical Center; San Francisco California USA
4. Division of Neuropathology, Department of Pathology; UCSF Medical Center; San Francisco California USA