1. Department of Molecular Medicine, The Scripps Research Institute, La Jolla, CA 92037, USA.
2. Dorris Neuroscience Center, The Scripps Research Institute, La Jolla, CA 92037, USA.
3. Neurodegeneration New Medicines Center, The Scripps Research Institute, La Jolla, CA 92037, USA.
4. Waitt Advanced Biophotonics Center, Salk Institute for Biological Studies, La Jolla, CA 92037, USA.