1. Medical student at Stanford University School of Medicine, Stanford, California, now with Department of Dermatology, University of California, San Francisco
2. Department of Dermatology, University of California, San Francisco
3. Department of Epidemiology and Biostatistics, University of California, San Francisco
4. Department of Dermatology, University of California, San Francisco4Dermatology Service, San Francisco Veterans Affairs Medical Center, San Francisco, California