1. Department of Psychiatry and Behavioral Sciences, Stanford University, Palo Alto, California, USA
2. Department of Epidemiology and Population Health, Stanford University, Palo Alto, California, USA
3. Department of Sociology, Stanford University, Stanford, California, USA
4. Center for Biomedical Ethics, Stanford University, Stanford, California, USA
5. Department of Sociology, University of British Columbia, Vancouver, British Columbia, Canada
6. Department of Dermatology, Stanford University, Stanford, California, USA