1 Department of Dermatology, Weill Cornell Medicine, New York, New York; Dermatology Service, Memorial Sloan Kettering Cancer Center, New York, New York; Department of Dermatology, Stanford Medicine, Redwood City, California.
2 Department of Dermatology, University of California San Francisco, San Francisco, California.
3 Department of Dermatology, University of California San Francisco, San Francisco, California. Electronic address: Kieron.leslie@ucsf.edu.