1. McGovern Medical School University of Texas Houston Texas
2. Division of Dermatology Departments of Medicine and Pediatrics Washington University School of Medicine St. Louis Missouri
3. Division of Dermatology Department of Medicine University of California, Los Angeles Los Angeles California
4. Division of Dermatology Department of Medicine University of Calgary Calgary Alberta Canada
5. Division of Pediatric Rheumatology Department of Pediatrics University of Calgary Calgary Alberta Canada
6. Division of Community Pediatrics Department of Pediatrics University of Calgary Calgary Alberta Canada
7. Dermatology Research Institute Calgary Alberta Canada
8. Department of Dermatology Boston Children's Hospital Harvard Medical School Boston Massachusetts
9. Department of Pathology Boston Children's Hospital Harvard Medical School Boston Massachusetts
10. Department of Pediatric Oncology Dana‐Farber Cancer Institute Boston Massachusetts
11. Division of Oncology Center for Pediatric Clinical Effectiveness Children's Hospital of Philadelphia Philadelphia Pennsylvania
12. Department of Pediatrics Perelman School of Medicine University of Pennsylvania Philadelphia Pennsylvania
13. Department of Pathology and Laboratory Medicine Children's Hospital of Philadelphia Philadelphia Pennsylvania
14. University of Pennsylvania Philadelphia Pennsylvania
15. Section of Pediatric Dermatology Children's Hospital of Philadelphia Philadelphia Pennsylvania
16. Departments of Pediatrics and Dermatology Perelman School of Medicine University of Pennsylvania Philadelphia Pennsylvania