1. Institute of Environmental Medicine and Integrative Health, Faculty of Medicine University of Augsburg Augsburg Germany
2. Institute of Environmental Medicine Helmholtz Zentrum München Augsburg Germany
3. Christine Kühne‐Center for Allergy Research and Education (CK‐CARE) Medicine Campus Davos Switzerland
4. Swiss Institute of Allergy and Asthma Research (SIAF), University of Zurich Zurich Switzerland
5. AbbVie Inc. North Chicago Illinois USA
6. Center for Allergy and Environment (ZAUM) Technische Universität München Germany
7. Davos Biosciences Davos Switzerland
8. University of Minnesota Minneapolis Minnesota USA
9. Department of Immunology and Microbiology, The LEO Foundation Skin Immunology Research Center University of Copenhagen Copenhagen Denmark
10. Department of Dermatology, Allergy Unit University Hospital of Zürich Zürich Switzerland
11. Faculty of Medicine University of Zürich Zürich Switzerland
12. Almirall Hermal GmbH Reinbek Germany
13. Hochgebirgsklinik Davos Davos Switzerland
14. LEO Pharmaceutical Products Sarath Ltd Zürich Switzerland
15. Pfizer Switzerland AG Zürich Switzerland
16. Department of Pediatrics, Division of Respiratory Medicine and Allergology Bern University Hospital Bern Switzerland
17. Department of BioMedical Research (DBMR) University of Bern Bern Switzerland
18. Department of Dermatology and Allergy, Allergy Clinic Copenhagen University Hospital–Herlev and Gentofte Copenhagen Denmark
19. Department of Clinical Medicine University of Copenhagen Copenhagen Denmark
20. Psychosomatic Department Hochgebirgsklinik Davos Switzerland
21. Pfizer Istanbul Turkey
22. Universitair Ziekenhuis Brussel Belgium
23. Department of Dermatology and Allergy University Hospital Bonn Bonn Germany
24. Diakonessenhuis Utrecht Zeist Doorn Locatie Utrecht Erasmus MC, University Medical Center Utrecht Utrecht Netherlands
25. Department of Clinical Medicine Trinity College Dublin Dublin Ireland
26. Center of Pathophysiology, Infectiology and Immunology Institute of Pathophysiology and Allergy Research, Medical University of Vienna Vienna Austria
27. The interuniversity Messerli Research Institute, University of Veterinary Medicine Vienna, Medical University Vienna and University Vienna Vienna Austria
28. Dermatology Branch National Institute of Arthritis and Musculoskeletal and Skin Diseases, National Institutes of Health Bethesda Maryland USA
29. Environmental Health LLC Durham North Carolina USA
30. Ostschweizer Kinderspital St. Gallen St.Gallen Switzerland
31. Department of Dermatology University of California Davis Sacramento California USA
32. Stanford University School of Medicine Stanford California USA
33. APC Microbiome Ireland University College Cork Cork Ireland
34. Department of Medicine and School of Microbiology University College Cork Cork Ireland
35. Faculty of Médicine Antananarivo Madagascar
36. Institute of Laboratory Medicine, Philipps University Marburg Germany
37. Klinik und Poliklinik für Dermatologie und Allergologie am Biederstein Technische Universität München Munich Germany
38. Institute of Tissue Medicine and Pathology University of Bern Bern Switzerland
39. Klinik für Dermatologie, Venerologie und Allergologie Universitätsklinikum Schleswig‐Holstein (UK‐SH) Kiel Germany
40. Department of Dermatology Inselspital, Bern University Hospital, University of Bern Bern Switzerland
41. Institute of Pharmacology, University of Bern Bern Switzerland
42. Institute of Biochemistry, Brandenburg Medical School Neuruppin Germany
43. Center for Chronic Pruritus and Department of Dermatology University Hospital Münster Münster Germany
44. Department of Dermatology and Venereology Hamad Medical Corporation Doha Qatar
45. Translational Research Institute, Academic Health System, Hamad Medical Corporation Doha Qatar
46. Dermatology Institute, Academic Health System, Hamad Medical Corporation Doha Qatar
47. School of Medicine Weill Cornell Medicine‐Qatar Ar‐Rayyan Qatar
48. College of Medicine Qatar University Doha Qatar
49. INSERM 1312 University of Bordeaux Bordeaux France
50. Department of Dermatology, Faculdade de Medicina Hospital das Clínicas, Universidade de São Paulo São Paulo São Paulo Brazil
51. Bencard Allergie GmbH München Munich Germany
52. Department of Dermatology and Venerology Bispebjerg Hospital, University of Copenhagen Copenhagen Denmark
53. Department of Dermatology and Allergy Hannover Medical School Hannover Germany
54. Cluster of Excellence RESIST (EXC 2155) Hannover Medical School Hannover Germany
55. Department of Medicine Solna, Division of Immunology and Allergy Karolinska Institute and Karolinska University Hospital Stockholm Solna Sweden
56. Department of Pneumology, Intensive Care Medicine, Center for Internal Medicine Universitätsmedizin Rostock Rostock Germany
57. Department of Dermatology and Allergy Ludwig‐Maximilian‐University Munich Germany
58. Department of Dermatology and Allergy University Hospital Augsburg Augsburg Germany
59. Comprehensive Center of Inflammation Medicine University Hospital Schleswig Holstein Campus Luebeck Lubeck Germany
60. Department of Dermatology and Allergy School of Medicine, Technical University of Munich Munich Germany
61. Department of Medicine Solna, Division of Dermatology and Venereology Karolinska Institutet Stockholm Sweden