1. Department of Dermatology, Stanford University School of Medicine, Palo Alto, California
2. Department of Dermatology, School of Medicine, University of California, San Francisco
3. Program for Clinical Research and Technology, Stanford University, Stanford, California
4. Nuffield Department of Primary Care Health Sciences, University of Oxford, Oxford, England, United Kingdom
5. Center for Biomedical Ethics, Stanford University School of Medicine, Stanford, California