[1
]Casa di Cura Quisisana Rome & Fondazione Mediterranea G.B. Catania Italy
[2
]University Children's Hospital Medical Faculty University of Belgrade Belgrade Serbia
[3
]Departement of Dermatology and Allergology Institut Pierre Louis d'Epidemiologie et
de Sante Publique INSERM Tenon Hospital Sorbonne Université Paris France
[4
]Allergology University Hospital Basel Basel Switzerland
[5
]Department of Dermatology and Allergy Biederstein Technische Universität München Munich
Germany
[6
]Pediatric Allergy Unit Geneva University Hospital Geneva Switzerland
[7
]Department of Immunology and Allergy Ankara University School of Medicine Ankara Turkey
[8
]Department of Allergy and Immunology Centro Hospitalar Universitário de S João Porto
Portugal
[9
]Division of Allergy Department of Pulmonology Hôpital Arnaud de Villeneuve University
Hospital of Montpellier Montpellier France
[10
]UMRS 1136 Equipe ‐ EPAR ‐ IPLESP UPMC Univ Sorbonne Universités Paris France
[11
]Allergy Clinic Department of Dermatology and Allergy Herlev and Gentofte Hospital
University of Copenhagen Copenhagen Denmark
[12
]Department of Clinical Medicine University of Copenhagen Copenhagen Denmark
[13
]Allergy Research Group Instituto de Investigación Biomédica de Málaga-IBIMA Malaga
Spain
[14
]Allergy Unit Hospital Regional Universitario de Málaga-UMA-ARADyAL Malaga Spain
[15
]Clinical Immunology and Allergy Unit Sheffield Teaching Hospital Sheffield UK
[16
]University of Liverpool Liverpool UK
[17
]Regional Adult Cystic Fibrosis Unit St James's Hospital Leeds UK