1. University Children’s Hospital Faculty of Medicine University of Belgrade Belgrade Serbia
2. Allergy and Clinical Immunology Service Centro Hospitalar e Universitário do Porto Porto Portugal
3. Department of Allergy and Clinical Immunology Head of Drug Allergy Clinic - Centro Hospitalar Universitário, Hospital S.João Porto Portugal
4. Paediatric Allergy Group, Department of Women and Children’s Health, School of Life Course Sciences King’s College London London UK
5. Peter Gorer Department of Immunobiology, School of Immunology & Microbial Sciences King’s College London London UK
6. Children’s Allergy Service Guy’s and St. Thomas' NHS Foundation Trust London UK
7. Angioedema and Allergy Unit, Pediatric Allergy Clinic, Safra Children’s Hospital and the Clinical Immunology Chaim Sheba Medical Center Tel Hashomer Israel
8. Faculty of Pediatric Medicine, Sackler Medical School Tel Aviv University Tel Aviv Israel
9. Faculty of Medicine, Department of Pediatric Allergy and Immunology Mersin University Mersin Turkey
10. Allergy Unit, Department of Pediatric Medicine Anna Meyer Children’s University Hospital Florence Italy
11. Pulmonology and Allergy Unit, Department of Paediatrics Hôpital des Enfants Malades Paris France
12. Faculty of Medicine Paris Descartes University Paris France
13. Department of ENT Amsterdam University Medical Center Amsterdam The Netherlands
14. Pediatric Allergy Unit, Department of Child and Adolescent Geneva University Hospitals Geneva Switzerland