1. TransDerm Inc., Santa Cruz, California.
2. SomaGenics Inc., Santa Cruz, California.
3. Present address: Applied Biosystems, Austin, Texas.
4. Molecular Imaging Program at Stanford (MIPS), Stanford University School of Medicine, Stanford, California.
5. Thermo Fisher Scientific, Dharmacon Products, Lafayette, Colorado.
6. Department of Pediatrics, Radiology, and Microbiology and Immunology, Stanford University School of Medicine, Stanford, California.