1. Molecular and Cellular Biology, PharMingen, San Diego, California
2. Department of Pathological Sciences, University of Manchester, Manchester, United Kingdom
3. National Center for Microscopy and Imaging Research at San Diego, Department of Neuroscience, University of California, San Diego, School of Medicine, La Jolla, California
4. School of Pharmacy, University of Southern California, Los Angeles, California
5. Department of Biology, 0506, University of California, San Diego, La Jolla, California
6. Imgenex, San Diego, California