1 Charité, Universitätsmedizin Berlin, Humboldt-Universität zu Berlin, Berlin Institute of Health, Comprehensive Allergy Center, Department of Dermatology and Allergy, Berlin, Germany.
2 University Hospital Montpellier, France.
3 MACVIA-France, Montpellier, France.
4 Swiss Institute of Allergy and Asthma Research (SIAF), University of Zurich, Davos, Switzerland.
5 Department of Clinical Immunology, Wrocław Medical University, ALL-MED Medical Research Institute, Wroclaw, Poland.
6 Upper Airways Research Laboratory, ENT Dept, Ghent University Hospital, Ghent, Belgium.
7 Center for Rhinology and Allergology, Wiesbaden, Germany.
8 Transylvania University Brasov, Brasov, Romania.
9 Department of Allergy and Immunology, Hospital Quirónsalud Bizkaia, Erandio, Spain.
10 Woolcock Institute of Medical Research, University of Sydney, Woolcock Emphysema Centre, Sydney Local Health District, Glebe, NSW, Australia.
11 Personalized Medicine Clinic Asthma & Allergy, Humanitas University, Humanitas Research Hospital, Rozzano, Milan, Italy.
12 Department of Biomedical Sciences, Humanitas University, Pieve Emanuele, MI, Italy.
13 School of Medicine, University CEU San Pablo, Madrid, Spain.
14 3ProAR - Nucleo de Excelencia em Asma, Federal University of Bahia, Brasil and WHO GARD Planning Group, Salvador, Brazil.
15 Medical Consulting Czarlewski, Levallois, and MASK-air, Montpellier, France.
16 Department of Medical Sciences and Public Health and Unit of Allergy and Clinical Immunology, University Hospital "Duilio Casula", University of Cagliari, Cagliari, Italy.
17 Department of Respiratory Medicine, Wuhan Children's Hospital, Tongji Medical College, Huazhong, University of Science and Technology, Wuhan, Hubei, China.
18 Center for research in health technologies and information systems- CINTESIS, Universidade do Porto, Porto, Portugal.
19 Allergy Unit, Instituto CUF Porto e Hospital CUF Porto, Porto, Portugal.
20 Health Information and Decision Sciences Department - CIDES, Faculdade de Medicina, Universidade do Porto, Porto, Portugal.
21 Faculdade de Medicina da Universidade do Porto, Porto, Portugal.
22 Department of Allergology, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, China.
23 Skin and Allergy Hospital, Helsinki University Hospital, Helsinki, Finland.
24 Department of Pathophysiology and Allergy Research, Medical University of Vienna, Vienna, Austria.
25 Servicio de Alergia e Immunologia, Clinica Santa Isabel, Buenos Aires, Argentina.
26 GARD Chairman, Geneva, Switzerland.
27 Departments of Immunology and Dermatology/Allergology, University Medical Center Utrecht, Utrecht, The Netherlands.
28 Division of Internal Medicine, Asthma and Allergy, Barlicki University Hospital, Medical University of Lodz, Poland.
29 Center of Excellence in Asthma and Allergy, Médica Sur Clinical Foundation and Hospital, México City, Mexico.
30 Rhinology Unit & Smell Clinic, ENT Department, Hospital Clínic, Clinical & Experimental Respiratory Immunoallergy, IDIBAPS, CIBERES, University of Barcelona, Spain.
31 Johns Hopkins School of Medicine, Baltimore, Maryland, USA.
32 National Hospital Organization, Tokyo National Hospital, Tokyo, Japan.
33 Dept of Otorhinolaryngology, Chiba University Hospital, Chiba, Japan.
34 Departments of Medicine and Microbiology, APC Microbiome Ireland, University College Cork, Cork, Ireland.
35 Division of Infection, Immunity & Respiratory Medicine, Royal Manchester Children's Hospital, University of Manchester, Manchester, UK.
36 Allergy Dpt, Pediatric Clinic, University of Athens, Athens, Greece.
37 Department of Otorhinolaryngology, Head and Neck Surgery, Section of Rhinology and Allergy, University Hospital Marburg, Phillipps-Universität Marburg, Germany.
38 Department of Prevention of Envinronmental Hazards and Allergology, Medical University of Warsaw, Poland.
39 Centre for Inflammation Research, Child Life and Health, The University of Edinburgh, Edinburgh, United Kingdom.
40 University of Bari Medical School, Unit of Geriatric Immunoallergology, Bari, Italy.
41 Vilnius University, Faculty of Medicine, Institute of Clinical Medicine &, Institute of Health Sciences, Vilnius, Lithuania.
42 European Academy of Paediatrics (EAP/UEMS-SP), Brussels, Belgium.
43 Celal Bayar University, Department of Pulmonology, Manisa, Turkey.
44 Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Uniersität zu Berlin, Berlin Institute of Health, Comprehensive Allergy-Centre, Department of Dermatology and Allergy, member of GA2LEN, Berlin, Germany.