1. Departments of Dermatology and Pediatrics Northwestern University Feinberg School of Medicine Chicago IL USA
2. Department of Dermatology University of California San Francisco San Francisco CA USA
3. Departments of Pediatrics and Dermatology Icahn School of Medicine at Mount Sinai New York NY USA
4. Department of Dermatology University of Miami Miller School of Medicine Miami FL USA
5. Departments of Pediatrics and Medicine University of Calgary Calgary AB USA
6. Department of Dermatology Stanford University School of Medicine Stanford CA USA