1. Department of Dermatology, UCSF School of Medicine, University of California, San Francisco
2. Departments of Pediatrics and Dermatology, Northwestern University Feinberg School of Medicine, Chicago, Illinois
3. Division of Dermatology, Ann & Robert H. Lurie Children’s Hospital of Chicago, Chicago, Illinois
4. Department of Dermatology, University of Wisconsin-Madison School of Medicine and Public Health, Madison
5. Department of Dermatology, Medical College of Wisconsin, Milwaukee
6. Departments of Dermatology and Pediatrics, Indiana University School of Medicine, Indianapolis, Indiana