1. University of California San Francisco School of Medicine San Francisco CA USA
2. Department of Dermatology Baylor College of Medicine Houston TX USA
3. Department of Dermatology University of California San Francisco San Francisco CA USA
4. Departments of Dermatology and Pediatrics Yale University School of Medicine New Haven CT USA
5. Division of Pediatric Dermatology Departments of Pediatrics and Dermatology Ann & Robert H. Lurie Children's Hospital of Chicago Northwestern University Feinberg School of Medicine Chicago IL USA
6. Division of Pediatric Dermatology Department of Dermatology University of Colorado Anschutz Medical College Aurora CO USA