Affiliation: | 1. Department of Dermatology, University of Pennsylvania, Philadelphia, Pennsylvania;2. Harvard Medical School, Boston, Massachusetts;3. Department of Psychiatry, Stanford University, Stanford, California;4. Dermatology Service, Veterans Affairs Medical Center, San Francisco, California;5. Department of Dermatology, University of California, San Francisco, California;6. Department of Epidemiology and Biostatistics, University of California, San Francisco, California |