1 Allergy Service, Hospital Universitario de Gran Canaria Doctor Negrín, Las Palmas de Gran Canaria, Spain.
2 Adolescent Working Group, Pediatric Allergy Committee, Spanish Society of Allergy and Clinical Immunology (SEAIC).
3 Department of Women and Children's Health (Pediatric Allergy), School of Life Course Sciences, Faculty of Life Sciences and Medicine, King's College London, London, United Kingdom.
4 Children's Allergy Service, Evelina London Children's Hospital, Guy's and St Thomas', NHS Foundation Trust, London, United Kingdom.
5 Pediatric Allergy Unit, Hospital Universitario Donostia, San Sebastián, Spain.
6 Allergy Department, Hospital La Paz Institute for Health Research (IdiPAZ), Madrid, Spain.
7 Pediatric Allergy Unit, Hospital Universitari Vall d'Hebron, Barcelona, Spain.
8 Grup d'Investigació Creixement i Desenvolupament, Institut de Recerca de l'Hospital Universitari Vall d'Hebron (VHIR), Barcelona, Spain.