1. Weill Cornell Medical College, New York, New York
2. Department of Dermatology, Stanford University Medical Center and Cancer Institute, Palo Alto, California
3. Center for Geospatial Analytics, North Carolina State University, Raleigh
4. Stanford Prevention Research Center, Stanford School of Medicine, Palo Alto, California
5. Dermatology Service, Veterans Affairs Palo Alto Health Care System, Palo Alto, California
6. Stanford Health Research and Policy, Stanford School of Medicine, Palo Alto, California