1. Department of Medicine Dermatology Service Memorial Sloan Kettering Cancer Center New York NY U.S.A.
2. Department of Pathology Dermatopathology Service Memorial Sloan Kettering Cancer Center New York NY U.S.A.
3. Department of Medicine, Melanoma and Immunotherapeutics Service Memorial Sloan Kettering Cancer Center New York NY U.S.A.
4. Weill Cornell Medical College New York NY U.S.A.