1 Section of Inflammation, Repair and Development, National Heart and Lung Institute, Imperial College London, London, United Kingdom. Electronic address: [email protected].
2 Allergy Section, Clinica Universidad de Navarra, Madrid, Spain.
3 Paediatric Allergy Service, St Joan de Deu Hospital, Universitat de Barcelona, Barcelona, Spain.
10 Allergy Department, General University Hospital, Alicante, Spain.
11 Allergy Department, Clinico San Carlos Hospital, Madrid, Spain.
12 Paediatric Allergy Department, Anna Meyer Children's Hospital, Florence, Italy.
13 Genetics, Vaccines, Infectious Diseases and Pediatric research group (GENVIP), Institute of Healthcare Research (IDIS), Hospital Clinico Universitario de Santiago de Compostela, Santiago de Compostela, Spain.