1 Department of Dermatology, University of Nebraska Medical Center, Omaha, Nebraska. Electronic address: [email protected].
2 Harvard Medical School, Boston, Massachusetts.
3 Department of Dermatology, Massachusetts General Hospital, Boston, Massachusetts; Department of Dermatology, Johns Hopkins University, Baltimore, Maryland.
4 Department of Dermatology, Johns Hopkins University, Baltimore, Maryland.
5 Harvard Medical School, Boston, Massachusetts; Department of Dermatology, Brigham and Women's Hospital, Boston, Massachusetts.