1. Program for Clinical Research; Department of Dermatology; University of California San Francisco (UCSF); San Francisco CA USA
2. Faculty of Medicine; University of Ottawa; Ottawa ON Canada
3. Harvard T.H. Chan School of Public Health, Beth Israel Deaconess Medical Center, and Harvard Medical School; Boston MA USA
4. Department of Epidemiology and Biostatistics; University of California San Francisco (UCSF); San Francisco CA USA
5. Faculty of Epidemiology & Population Health; London School of Hygiene and Tropical Medicine; London UK