1. Department of Dermatology and Allergy; Allergie-Centrum-Charité; Charité - Universitätsmedizin Berlin; Berlin Germany
2. Department of Dermatology and Allergy Center; Odense Research Center for Anaphylaxis; Odense University Hospital; Odense Denmark
3. University Hospital; Montpellier France
4. VIMA: Ageing and Chronic Diseases, Epidemiological and Public Health Approaches; INSERM; Paris France
5. UVSQ; UMR-S 1168; Université Versailles St-Quentin-en-Yvelines; St-Quentin-en-Yvelines France
6. IRCCS AOU San Martino-IST; University of Genoa; Genoa Italy
7. Department of Dermatology; D.Y. Patil School of Medicine; Nerul Navi Mumbai India
8. Norfolk and Norwich University Hospital; Norwich UK
9. Department of Dermatology; Institute of Biomedical and Health Sciences; Hiroshima University; Hiroshima Japan
10. Department of Dermatology; Okmeydani Training and Research Hospital; Istanbul Turkey
11. 2nd Department of Dermatology and Venereology; Attikon University Hospital; Athens Greece
12. Department of Clinical Immunology and Allergy; Smolensk State Medical University; Smolensk Russia
13. Department of Medicine; Johns Hopkins University; Baltimore MD USA
14. Division Allergy and Immunology; University of Toronto; Toronto ON Canada
15. Allergy and Clinical Immunology; Bnai-Zion Medical Center; The Technion; Haifa Israel
16. Department of Dermatology and Venereology; Peking University, First Hospital; Beijing China
17. Department of Dermatology; Hospital del Mar, IMIM; Universitat Autònoma; Barcelona Spain