1. California University of Science and Medicine Colton California USA
2. Department of Dermatology Kaiser Permanente Los Angeles California USA
3. Department of Noncommunicable Disease Epidemiology London School of Hygiene and Tropical Medicine London London UK
4. Department of Dermatology University of Pennsylvania Philadelphia Pennsylvania USA
5. MRC Integrative Epidemiology Unit Bristol Medical School Bristol UK
6. Department of Dermatology The Hospital for Sick Children Toronto Canada
7. Department of Dermatology Johns Hopkins University Baltimore Maryland USA
8. Department of Dermatology, Charing Cross Hospital Imperial College Healthcare NHS Trust London London UK
9. Department of Dermatology University of California, San Francisco San Francisco California USA