1 Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts.
2 Department of Dermatology, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts.
3 Department of Dermatology, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania.
4 Department of Dermatology, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania. Electronic address: misha.rosenbach@uphs.upenn.edu.