1. Pulmonology and Allergy Department Hospital de la Santa Creu i Sant Pau Barcelona Spain
2. Pulmonology and Anatomical Pathology Department Hospital Universitario Ramón y Cajal Madrid Spain
3. Allergology Department Hospital Universitario La Paz Madrid Spain
4. Immunology and Allergology Department Instituto de Investigación Sanitaria (IIS) Fundación Jiménez Díaz Madrid, CIBER‐Respiratory Diseases (CIBERES)Spain
5. Pulmonology Department Hospital Royo Villanova Zaragoza Spain
6. Pulmonology Department Cellular Biology, Physiology and Immunology Department Hospital Vall d'HebronCIBER‐Respiratory Diseases (CIBERES)Universidad Autónoma de Barcelona (UAB)BarcelonaSpain
7. Hospital Universitario Lucus Augusti. EOXI Cervo Lugo Spain
8. Pulmonology Department Hospital Miguel Servet ZaragozaIIS Aragón Spain
9. Complejo Hospitalario de Navarra Pamplona Spain