1 Program in Dermatopathology, Department of Pathology , Brigham and Women's Hospital, Harvard Medical School , Boston, MA , USA.
2 Department of Dermatology , Massachusetts General Hospital, Harvard Medical School , Boston, MA , USA.
3 Division of Dermatopathology, Department of Pathology , Tufts University School of Medicine , Boston, MA , USA.
4 Program in Dermatopathology, Department of Pathology , Brigham and Women's Hospital, Harvard Medical School , Boston, MA , USA ; Department of Dermatology , Brigham and Women's Hospital, Harvard Medical School , Boston, MA , USA.