1. Columbia University Vagelos College of Physicians and Surgeons; New York New York
2. Department of Dermatology; Columbia University Medical Center; New York New York
3. Department of Dermatology, Division of Dermatopathology; Columbia University Medical Center; New York New York
4. Department of Pediatrics; Columbia University Medical Center; New York New York
5. Departments of Pediatrics, Pathology and Cell Biology; Columbia University Medical Center; New York New York
6. Departments of Dermatology and Pediatrics; Columbia University Medical Center; New York New York