1 Department of Dermatology, Massachusetts General Hospital, Boston, Massachusetts.
2 Department of Dermatology, Massachusetts General Hospital, Boston, Massachusetts; Rutgers Robert Wood Johnson Medical School, New Brunswick, New Jersey.
3 Department of Dermatology, Massachusetts General Hospital, Boston, Massachusetts; Harvard Medical School, Boston, Massachusetts.
4 Harvard Medical School, Boston, Massachusetts; Department of Pathology, Massachusetts General Hospital, Boston, Massachusetts.
5 Harvard Medical School, Boston, Massachusetts; Department of Medicine, Massachusetts General Hospital, Boston, Massachusetts; Division of Hematology/Oncology, Massachusetts General Hospital, Boston, Massachusetts.
6 Department of Dermatology, Massachusetts General Hospital, Boston, Massachusetts; Harvard Medical School, Boston, Massachusetts; Department of Medicine, Massachusetts General Hospital, Boston, Massachusetts. Electronic address: stchen@partners.org.