1 Harvard Medical School, Boston, Massachusetts; Department of Dermatology, Massachusetts General Hospital, Boston, Massachusetts.
2 Department of Dermatology, Massachusetts General Hospital, Boston, Massachusetts; Virginia Commonwealth University School of Medicine, Richmond, Virginia.
3 Department of Dermatology, Massachusetts General Hospital, Boston, Massachusetts; University of Hawaii at Manoa John A. Burns School of Medicine, Honolulu, Hawaii.
4 Harvard Medical School, Boston, Massachusetts; Department of Dermatology, Massachusetts General Hospital, Boston, Massachusetts. Electronic address: ffedeles@mgh.harvard.edu.