1 Center for Cancer Immunology and Cutaneous Biology Research Center, Department of Dermatology and Center for Cancer Research, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, USA.
2 Department of Pathology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, USA.
3 Center for Cancer Immunology and Cutaneous Biology Research Center, Department of Dermatology and Center for Cancer Research, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, USA. Electronic address: sdemehri1@mgh.harvard.edu.