| Institution: | 1. University of California, San Francisco School of Medicine, San Francisco, CA, U.S.A;2. Program for Clinical Research, Department of Dermatology, San Francisco, CA, U.S.A;3. San Francisco Veterans Affairs Medical Center, San Francisco, CA, U.S.A;4. University of Chicago, Department of Medicine, Section of Dermatology, Chicago, IL, U.S.A;5. Department of Epidemiology and Biostatistics, University of California San Francisco, San Francisco, CA, U.S.A;6. Department of Medicine, Division of Geriatrics, University of California San Francisco, San Francisco, CA, U.S.A;7. Correspondence: Mary‐Margaret Chren.;8. E‐mail: |
