1. Department of Neurology and Neurological Sciences, Beckman Center for Molecular Medicine, B002, Stanford, CA 94305, USA.
2. Department of Neurology, University of California at San Francisco School of Medicine, San Francisco, CA 94143, USA.
3. Neuroimmunology Laboratory, Department of Biochemistry, La Trobe University, Bundoora, Victoria, 3083 Australia.
4. Department of Cell Biology and Neuroscience, Rutgers University, Piscataway, NJ 08854, USA.
5. Department of Pathology (Neuropathology), Stanford University School of Medicine, Stanford, CA 94305, USA.
6. Roche Bioscience, 3401 Hillview Avenue, Palo Alto, CA 94304, USA.