Affiliation: | 1. Clinical Professor of Dermatology, University of Pennsylvania, Perelman School of Medicine, Philadelphia, PA;2. Assistant Professor of Pediatrics and Dermatology, University of Pennsylvania, Perelman School of Medicine, The Children’s Hospital of Philadelphia, Philadelphia, PA;3. Associate Professor of Dermatology, University of Connecticut School of Medicine, Farmington, CT;4. Professor of Dermatology, Loma Linda University School of Medicine, Loma Linda, CA |