1 Division of Allergy, Urticaria Center of Reference and Excellence (UCARE), University Clinic of Respiratory and Allergic Diseases Golnik, Golnik, Slovenia.
2 Faculty of Medicine, University of Maribor, Maribor, Slovenia.
3 Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia.
4 Department of Dermatology, Urticaria Center of Reference and Excellence (UCARE), Bispebjerg Hospital, University of Copenhagen, Copenhagen, Denmark.
5 Center of Allergy and Immunology, Urticaria Center of Reference and Excellence (UCARE), Clinical State Hospital 52, Moscow Ministry of Healthcare, Moscow, Russian Federation.
6 Department of Clinical Immunology and Allergology, I.M. Sechenov First Moscow State Medical University, Moscow, Russian Federation.
7 Department of Dermatology and Venereology, I.M. Sechenov First Moscow State Medical University, Moscow, Russian Federation.
8 Department of Clinical Genetics, Veltischev Research and Clinical Institute for Pediatrics of the Pirogov Russian National Research Medical University, Moscow, Russian Federation.
9 Department of Dermatology, Urticaria Center of Reference and Excellence (UCARE), Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand.
10 Department of Clinical Immunology and Allergology, Urticaria Center of Reference and Excellence (UCARE), Smolensk State Medical University, Smolensk, Russian Federation.
11 Faculdade de Ciências, Médicas e da Saúde de Juiz de Fora (SUPREMA), Urticaria Center of Reference and Excellence (UCARE), Hospital Maternidade Therezinha de Jesus, Minas Gerais, Brazil.
12 Urticaria Center of Reference and Excellence (UCARE), Institute of Allergology, Charité -Universitätsmedizin Berlin, Corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany.
13 Fraunhofer Institute for Translational Medicine and Pharmacology ITMP, Allergology and Immunology, Berlin, Germany.
14 Microbiology Department, Faculty of Medicine, Urticaria Center of Reference and Excellence (UCARE), Kuwait University, Safat, Kuwait.
15 Department of Dermatology and Venerology, Urticaria Center of Reference and Excellence (UCARE), Comprehensive Allergy Center, Kepler University Hospital, Linz, Austria.
16 Department of Dermatology, Urticaria Center of Reference and Excellence (UCARE), University Allergy Center, University Hospital Carl Gustav Carus, Technical University, Dresden, Germany.
17 Immunoallergology Department, Urticaria Center of Reference and Excellence (UCARE), Hospital de Santa Maria, CHULN, Lisbon, Portugal.
18 Division of Allergy, Department of Internal Medicine, Istanbul Faculty of Medicine, Urticaria Center of Reference and Excellence (UCARE), Istanbul University, Istanbul, Turkey.
19 Faculdade de Medicina do ABC (FMABC), Urticaria Center of Reference and Excellence (UCARE), Santo André, Brazil.
20 Division of Allergy, Department of Pediatrics, Clinical Immunology and Rheumatology, Urticaria Center of Reference and Excellence (UCARE), Federal University of São Paulo, São Paulo, Brazil.
21 Department of Dermatology, Urticaria Center of Reference and Excellence (UCARE), Hospital del Mar, IMIM, Universitat Autònoma, Barcelona, Spain.
22 Clinic of Dermatology, Urticaria Center of Reference and Excellence (UCARE), University Hospital and Faculty of Medicine, University of Coimbra, Coimbra, Portugal.
23 Center of Allergy and Immunology, Urticaria Center of Reference and Excellence (UCARE), Tbilsi, Georgia.
24 Department of Environmental Immuno-Dermatology, Urticaria Center of Reference and Excellence (UCARE), Yokohama City University Graduate School of Medicine, Yokohama, Japan.
25 European Center for Diagnosis and Treatment of Urticaria/Angioedema (GA2LEN UCARE /ACARE Network) & Department of Clinical Allergology and Urticaria of Medical University of Silesia, Bytom, Poland.
26 Allergy Research Center, Mashhad University of Medical Sciences, Mashhad, Iran.
27 Department of Clinical Immunology and Allergology, Republican Center of Clinical Immunology and Allergology, Urticaria Center of Reference and Excellence (UCARE), Republican Clinical Hospital, Kazan State Medical University, Kazan, Russian Federation.
28 Department of Internal Diseases, Institute of Fundamental Medicine and Biology (IFMB) of Kazan Federal University, Kazan, Russian Federation.
29 Department of Dermatology, Urticaria Center of Reference and Excellence (UCARE), Koç University School of Medicine, Istanbul, Turkey.
30 Department of Dermatology, Urticaria Center of Reference and Excellence (UCARE), The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China.
31 Allergy Unit, Second Department of Dermatology and Venereology, Urticaria Center of Reference and Excellence (UCARE), National and Kapodistrian University of Athens, University General Hospital "Attikon", Athens, Greece.
32 Division of Allergy and Clinical Immunology, Department of Medicine, Urticaria Center of Reference and Excellence (UCARE), University of Cape Town, Cape Town, South Africa.
33 Allergy and Immunology Unit, University of Cape Town Lung Institute, Cape Town, South Africa.
34 Instituto de Alergia e Inmunologia del Sur, Urticaria Center of Reference and Excellence (UCARE), Buenos Aires, Argentina.
35 Adults and Pediatrics Allergy Unit, Urticaria Center of Reference and Excellence (UCARE), Hospital Italiano de Buenos Aires, Buenos Aires, Argentina.
36 Department of Internal Medicine, Immunology Service, Urticaria Center of Reference and Excellence (UCARE), Federal University of Rio de Janeiro, Rio de Janeiro, Brazil.
37 London Allergy and Immunology Centre, Urticaria Center of Reference and Excellence (UCARE), London, UK.
38 Department of Dermatology, Urticaria Center of Reference and Excellence (UCARE), University Hospital of Erlangen, University of Erlangen-Nuremberg (FAU), Germany.
39 Allergy Unit, 2nd Pediatric Clinic, Urticaria Center of Reference and Excellence (UCARE), National and Kapodistrian University of Athens, Athens, Greece.
40 Department of General Practice, Urticaria Center of Reference and Excellence (UCARE), Community Health Service Center, Guangzhou City, China.
41 Department of Dermatology and Venerology, Urticaria Center of Reference and Excellence (UCARE), Beijing Key Laboratory of Molecular Diagnosis on Dermatoses and National Clinical Research Center for Skin and Immune Diseases, Peking University First Hospital, Beijing, China.