1. Department of Dermatology; Alpert Medical School of Brown University and Rhode Island Hospital; Providence RI U.S.A.
2. Division of Dermatology; Department of Medicine; University of Toronto; Toronto Canada
3. Division of Dermatology; Department of Medicine and Women's College Research Institute; Women's College Hospital; Toronto Canada
4. Department of Dermatology and Allergy; Technical University of Munich; Munich Germany
5. National Expertise Center for Atopic Dermatitis; Department of Dermatology and Allergology; University Medical Center Utrecht; Utrecht the Netherlands
6. Department of Dermatology and Allergy; Herlev-Gentofte Hospital; University of Copenhagen; Hellerup Denmark
7. Department of Dermatology; Academic Medical Centre; Amsterdam the Netherlands
8. Trinity College Dublin; National Children's Research Centre; Paediatric Dermatology, Our Lady's Children's Hospital; Dublin Ireland
9. Department of Medicine; Section of Dermatology; University of Verona; Verona Italy
10. Department of Pediatric Dermatology; Institute of Child Health; Kolkata India
11. Unit for Population-Based Dermatology Research; St John's Institute of Dermatology; King's College London and Guy's & St Thomas’ NHS Foundation Trust; London U.K.
12. Faculty of Medicine; University of Sydney; Sydney NSW Australia
13. Departments of Dermatology and Pediatrics; Northwestern University Feinberg School of Medicine; Chicago IL U.S.A.
14. Department of Dermatology; Icahn School of Medicine at Mount Sinai Medical Center; New York NY U.S.A.