1. Department of Pharmacology, University of California, San Diego, La Jolla, CA 92093
2. Department of Bioengineering, University of California, San Diego, La Jolla, CA 92093
3. Department of Psychiatry, University of British Columbia, Vancouver, British Columbia V6T 1Z3, Canada
4. Division of Biological Sciences, Neurobiology Section, University of California, San Diego, La Jolla, CA 92093
5. Department of Pathology, University of California, San Diego, La Jolla, CA 92093
6. Discovery Research, Teva Pharmaceutical Industries Ltd., West Chester, PA 19380