1. Department of Dermatology Oregon Health and Science University Portland Oregon USA
2. Department of Dermatology and the Immunology Institute Icahn School of Medicine at Mount Sinai New York New York USA
3. Departments of Dermatology and Pediatrics University of California San Diego and Rady Children's Hospital San Diego San Diego California USA
4. Division of Allergy‐Immunology, Department of Pediatrics National Jewish Health and University of Colorado School of Medicine Denver Colorado USA
5. Department of Dermatology and Allergy, Christine Kühne—Center for Allergy Research and Education (CK‐CARE) University Hospital Bonn Bonn Germany
6. LEO Pharma Madison New Jersey USA
7. Department of Dermatology George Washington University School of Medicine Washington DC USA