1. Immunology Department Centre de Diagnòstic Biomèdic Hospital Clínic de Barcelona Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS) Universitat de Barcelona Barcelona Spain
2. ARADyAL Network Health Institute Carlos III Madrid Spain
3. Allergy Service Hospital Universitario Reina Sofía Maimonides Biomedical Research Institute of Córdoba (IMIBIC) Córdoba Spain
4. Allergy Service Department of Biomedical and Diagnostic Sciences and Institute for Biomedical Research of Salamanca (IBSAL) University Hospital of Salamanca Salamanca Spain
5. Allergy Service Hospital Complex of Navarra Pamplona Spain
6. Navarra Institute for Health Research (IdiSNA) Cooperative Health Research Thematic Networks (RETICs) for Asthma Madrid Spain
7. Allergy Section, Pneumology Department Hospital Clínic de Barcelona Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS) Universitat de Barcelona Barcelona Spain
8. Allergy Section Internal Medicine Department Hospital Universitari Vall d´Hebron Institut de Recerca Vall d'Hebron (VHIR) Universitat Autònoma de Barcelona. Barcelona Spain