1 Dermatology Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, New York.
2 Dermatology Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, New York; Weill Cornell Medical College, Department of Dermatology, New York, New York.
3 Dermatology Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, New York; Weill Cornell Medical College, Department of Dermatology, New York, New York. Electronic address: [email protected].