1 Department of Dermatology and Allergy, Charité-Universitätsmedizin Berlin.
2 Department of Allergy and Immunology, Hospital Quironsalud Bizkaia.
3 Center for Children and Adolescents, University Hospital Frankfurt.
4 Division of Clinical Immunology and Allergy, St. Michael's Hospital, University of Toronto.
5 Department of Dermatology, Johannes Gutenberg University Mainz.
6 Department of Medicine and Pediatrics, University of Calgary.
7 HAEi.
8 Hungarian Angioedema Center, 3rd Department of Internal Medicine, Semmelweis University.
9 Clinical Immunology, Faculdade de Medicina ABC.
10 Department of Dermatology, Hiroshima University.
11 Department of Medicine, Campbelltown Hospital and Western Sydney University.
12 Department of Internal Medicine, University of South Florida Morsani College of Medicine.
13 Department of Clinical Biochemistry and Immunology, Addenbrooke's Hospital, Cambridge University Hospitals NHS Foundation Trust.
14 Department of Internal Medicine, Allergy/Immunology Division, Southwestern Medical School, University of Texas.
15 Hemophilia Centre Rhine Main.
16 University of Medicine and Pharmacy.
17 Berlin Institute of Health, Department of Dermatology, Venereology und Allergy, Division of Evidence based Medicine (dEBM), Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, Charité-Universitätsmedizin Berlin.
18 Department of Pediatrics, Nippon Medical School.
19 Department of Medicine, University of Cape Town.
20 Department of Medicine, University of California-San Diego.
21 Division of Hematology, University of Alberta.
22 Allergy and Immunology Department, University of Missouri at Kansas City School of Medicine.
23 Allergy and Clinical Immunology Department, Centro Medico Docente La Trinidad.
24 Department of Allergy, Peking Union Medical College Hospital and Chinese Academy of Medical Sciences.
25 San Diego VA Healthcare.
26 Department of Medicine and Pediatrics, Penn State University.