1. Department of Dermatology, University of California Davis School of Medicine, Sacramento, California.
2. Department of Surgery, University of California Davis School of Medicine, Sacramento, California.
3. Dermatology Service; Department of Surgery; VA Northern California, Sacramento VA Medical Center, Mather, California.
4. Department of Biological Sciences, California State University, Sacramento, Sacramento, California.
5. Department of Chemistry, California State University, Sacramento, Sacramento, California.
6. Ophthalmology Service; Department of Surgery; VA Northern California, Sacramento VA Medical Center, Mather, California.
7. UC Davis Health System Eye Center, UC Davis School of Medicine, Sacramento, California.
8. Podiatry Section, Department of Surgery; VA Northern California, Sacramento VA Medical Center, Mather, California.