1. Department of Dermatology, School of Medicine, and Department of Epidemiology and Biostatistics, School of Public Health, Cancer Prevention and Control Center, Boston University, Boston, Massachusetts
2. Channing Laboratory, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Harvard School of Public Health, Boston, Massachusetts
3. Dermatology Service, Department of Medicine, Memorial-Sloan Kettering Cancer Center, New York, New York
4. Dana-Farber Cancer Institute and Harvard School of Public Health, Boston, Massachusetts
5. Centers for Disease Control and Prevention, Atlanta, Georgia
6. Department of Pediatric Oncology, Dana Farber Cancer Institute, Boston, Massachusetts