Affiliation: | 1. Ackerman Academy of Dermatopathology, New York, NY, USA;2. Department of Dermatology, Kasr Alainy Faculty of Medicine, Cairo University, Cairo, Egypt;3. Department of Statistics and Cancer Epidemiology, National Cancer Institute, Cairo University, Cairo, Egypt;4. Department of Dermatology and Dermatologic Surgery, Medical University of South Carolina, Charleston, SC, USA |