1. Rady’s Children’s Hospital–San Diego, Departments of Dermatology and Pediatrics, University of California, San Diego
2. Unit for Population-Based Dermatology Research, St John’s Institute of Dermatology, Guy’s and St Thomas’ National Health Service Foundation Trust, King’s College London, London, England
3. Division of Dermatology, Department of Pediatrics, Seattle Children’s Hospital, Seattle, Washington
4. Department of Pediatrics and Dermatology, St Louis University, St Louis, Missouri
5. Department of Dermatology, Heim Pál Children’s Hospital, Budapest, Hungary
6. Department of Histology and Embryology, Medical University of Warsaw, Warsaw, Poland
7. Department of Dermatology, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
8. Department of Dermatology, Takagi Dermatological Clinic, Obihiro, Japan
9. Nantes Université, Department of Dermatology, CHU Nantes, Nantes, France
10. Pfizer Ltd, Surrey, England
11. Pfizer Inc, Groton, Connecticut
12. Pfizer Inc, New York, New York