1 Department of Dermatology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts; Dermatology Residency Program, University of California Irvine, Irvine, California.
2 Department of Dermatology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts; State University of New York Stony Brook University Hospital, Stony Brook, New York.
3 Department of Dermatology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts; Rutgers New Jersey Medical School, Newark, New Jersey.
4 Departments of Dermatology and Pathology, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts.
5 Department of Dermatology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts. Electronic address: DKroshinsky@mgh.harvard.edu.