1. Lauren V. Ackerman Laboratory of Surgical Pathology, St. Louis Children’s Hospital, Washington University Medical Center, St. Louis, Missouri
2. Dermatopathology Center and Division of Dermatology, Washington University Medical Center, St. Louis, Missouri
3. Department of Pathology, University of Virginia, Charlottesville, Virginia
4. Department of Dermatology, University of Virginia, Charlottesville, Virginia