1 Department of Dermatology, Stanford University School of Medicine, Stanford, California; Department of Epidemiology and Population Health, Stanford University School of Medicine, Stanford, California. Electronic address: jljia@stanford.edu.
2 Department of Dermatology, Stanford University School of Medicine, Stanford, California.
3 Department of Dermatology, Stanford University School of Medicine, Stanford, California; Department of Epidemiology and Population Health, Stanford University School of Medicine, Stanford, California.