1. Department of Dermatology Boston Children's Hospital, Harvard Medical School Boston Massachusetts USA
2. Department of Dermatology University of Massachusetts Chan Medical School Worcester Massachusetts USA
3. Department of Dermatology Penn State Health Milton S. Hershey Medical Center Hershey Pennsylvania USA
4. Division of Pediatric Dermatology Children's Hospital of Philadelphia Philadelphia Pennsylvania USA
5. Department of Dermatology Children's Hospital of Los Angeles Los Angeles California USA
6. Departments of Dermatology and Pediatrics Columbia University Medical Center New York New York USA
7. Department of Pediatrics University of Massachusetts Chan Medical School Worcester Massachusetts USA