1 San Francisco VA Health Care System, San Francisco, CA; Loyola University Stritch School of Medicine, Maywood, IL.
2 Department of Dermatology, University of California, San Francisco.
3 Calico Computing, Livermore, CA.
4 San Francisco VA Health Care System, San Francisco, CA.
5 San Francisco VA Health Care System, San Francisco, CA; Department of Dermatology, University of California, San Francisco.
6 San Francisco VA Health Care System, San Francisco, CA; Department of Dermatology, University of California, San Francisco; Helen Diller Family Comprehensive Cancer Center, University of California, San Francisco. Electronic address: [email protected].