1. Department of Dermatology and Allergy; Allergy-Centre-Charité; Charité - University Hospital Berlin; Berlin Germany
2. Department of Dermatology; Medical University of Graz; Graz Austria
3. Allergy Clinic; Clinica San Carlo; Paderno Dugnano MI Italy
4. Department of Dermatology and Allergy Centre; Odense University Hospital; University of Southern Denmark; Odense Denmark
5. Department of Internal Diseases, Allergology and Clinical Immunology in Katowice; Medical University of Silesia; Zabrze Poland
6. Respiratory Diseases & Allergy; University of Genoa; IRCCS AOU SanMartino; Genoa Italy
7. Department of Clinical Immunology and Allergy; Federal University of Sao Paulo; Sao Paulo Brazil
8. Hospital del Mar. Parc de Salut Mar; Universitat Autònoma Barcelona; Barcelona Spain
9. Department of Dermatology; Dr. D. Y. Patil Medical College & Hospital; Nerul Navi Mumbai India
10. Clinic of Dermatology; Faculty of Medicine and University Hospital; Coimbra Portugal
11. St John's Institute of Dermatology; Guy's and St Thomas' Hospitals NHS Foundation Trust; London UK
12. Center for Applied Research on Allergy Québec; Québec QC Canada
13. Department of Dermatology; Institute of Biomedical and Health Sciences; Hiroshima University; Hiroshima Japan
14. Division of Pulmonary and Critical Care Medicine, Allergy and Clinical Immunology; Department of Medicine; Medical University of South Carolina; Charleston SC USA
15. Department of Dermatology and Allergy; Hannover Medical School; Hannover Germany
16. Department of Paediatrics; Pantai Hospital Kuala Lumpur; Bangsar Kuala Lumpur Malaysia
17. Department of Dermatology and Allergy; University Hospital of Tenon; Paris France
18. Johns Hopkins Asthma and Allergy Center; Baltimore MD USA
19. Allergy and Clinical Immunology Department Centro Médico-Docente La Trinidad; Caracas Venezuela
20. Allergy Unit; Department of Dermatology; University Hospital; Zürich Switzerland
21. Departments of Pediatrics & Child Health, Immunology; University of Manitoba; Winnipeg MB Canada
22. Department of Dermatology; University Medical Center Mainz; Mainz Germany
23. Division of Allergy and Clinical Immunology; University of Toronto; Toronto ON Canada
24. Bnai-Zion Medical Center; Faculty of Medicine; Technion; Haifa Israel
25. Unit of Dermatology and Venereology; Department of Biomedical Sciences and Human Oncology; University of Bari; Bari Italy
26. Department of Dermatology; Peking University First Hospital; Beijing China