1 Department of Dermatology, Massachusetts General Hospital, Boston, Massachusetts.
2 Department of Dermatology, Massachusetts General Hospital, Boston, Massachusetts; Department of Biomedical Informatics, Harvard Medical School, Boston, Massachusetts.
3 Department of Dermatology, Massachusetts General Hospital, Boston, Massachusetts; Department of Dermatology, Harvard Medical School, Boston, Massachusetts.
4 Department of Dermatology, Brigham and Women's Hospital, Boston, Massachusetts; Department of Dermatology, Harvard Medical School, Boston, Massachusetts.
5 Department of Dermatology, Massachusetts General Hospital, Boston, Massachusetts; Department of Dermatology, Harvard Medical School, Boston, Massachusetts. Electronic address: ysemenov@mgh.harvard.edu.