1. Columbia University Vagelos College of Physicians and Surgeons New York NY USA
2. Department of Dermatology Perelman School of Medicine at the University of Pennsylvania Philadelphia PA USA
3. Department of Dermatology Columbia University Vagelos College of Physicians and Surgeons New York NY USA
4. Department of Pediatrics Columbia University Vagelos College of Physicians and Surgeons New York NY USA
5. Department of Pathology Weill Cornell Medical College New York NY USA