1. Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health; Department of Dermatology and Allergy; Allergy-Centre-Charité; Berlin Germany
2. Department of Dermatology; Medical University of Graz; Graz Austria
3. Department of Allergology; Clinica San Carlo; Paderno Dugnano MI Italy
4. Allergy& Immunology Centre; Pantai Hospital Kuala Lumpur; Kuala Lumpur Malaysia
5. Baker Allergy Asthma and Dermatology Clinic; Portland OR USA
6. Allergy Unit; Department of Dermatology; University Hospital; Zürich Switzerland
7. University of Cincinnati Physicians Immunology Research Center; Cincinnati OH USA
8. Department of Dermatology and Allergy Centre; Odense University Hospital and University of Southern Denmark; Odense Denmark
9. Department of Internal Diseases, Allergology and Clinical Immunology in Katowice; Medical University of Silesia; Katowice Poland
10. Santa Casa de Sao Paulo School of Medical Sciences; Sao Paulo Brazil
11. Personalized Medicine Asthma and Allergy Clinic-Humanitas University & Research Hospital; Milano Italy
12. Department of Medicine and Pediatrics; Penn State University; Hershey Medical Center; Hershey PA USA
13. National Research Center-Institute of Immunology Federal Medical-Biological Agency of Russia; Moscow Russia
14. Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health; Division of Evidence Based Medicine; Department of Dermatology; Berlin Germany
15. Federal University of Sao Paulo; Sao Paulo Brazil
16. Hospital del Mar; IMIM; Universitat Autònoma Barcelona; Barcelona Spain
17. Department of Dermatology; Dr. D. Y. Patil Medical College & Hospital; Nerul Navi Mumbai India
18. Clinic of Dermatology; Faculty of Medicine and University Hospital; Coimbra Portugal
19. St John's’ Institute of Dermatology; Guy's’ and St. Thomas’ Hospital; NHS Foundation Trust; London UK
20. Service d'allergie; Centre Hospitalier Université Laval/Centre Hospitalier Universitaire de Québec; Québec QC Canada
21. Department of Dermatology; Institute of Biomedical and Health Sciences; Hiroshima University; Hiroshima Japan
22. Department of Medicine; Division of Pulmonary and Critical Care Medicine; Allergy and Clinical Immunology; Medical University of South Carolina; Charleston SC USA
23. Department of Dermatology and Allergy; Hannover Medical School; Hannover Germany
24. Campbelltown Hospital and Western Sydney University; Sydney Australia
25. Department of Dermatology; Okmeydani Training and Research Hospital; Istanbul Turkey
26. Department of Dermatology; Faculty of Medicine Siriraj Hospital; Mahidol University; Bangkok Thailand
27. Hospital Médica Sur; Mexico City Mexico
28. Royal Free Hospital; London UK
29. Department of Dermatology and Allergy; University Hospital of Tenon; Paris France
30. Department of Clinical Immunology and Allergy; Smolensk State Medical University; Smolensk Russia
31. Scuola e Cattedra di Allergologia e Immunologia Clinica; Dipartimento dell'Emergenza e dei Trapianti d'Organo; Università di Bari; Bari Italy
32. University of Groningen; Groningen The Netherlands
33. Johns Hopkins Asthma and Allergy Center; Baltimore MD USA
34. Allergy and Clinical Immunology Department; Centro Médico-Docente La Trinidad; Caracas Venezuela
35. Department of Dermatology; University Medical Center Mainz; Mainz Germany
36. Division of Allergy and Clinical Immunology; University of Toronto; Toronto ON Canada
37. Bnai-Zion Medical Center; Faculty of Medicine; Technion Haifa Israel
38. Dermatology and Venereology Private Practice; Bari and Barletta Italy
39. Department of Dermatology and Venereology; Aarhus University Hospital; Aarhus Denmark
40. Department of Dermatology and Venereology; Peking University; First Hospital; Beijing China