Institutional affiliations
1 Allergy Department, Hospital Universitario Gregorio Marañón, Madrid, Spain
2 Allergy Department, Hospital Universitario de Canarias, Tenerife, Spain.
3 Allergen Immunotherapy Unit, Hospital Universitario de Canarias, Tenerife, Spain.
4 Severe Asthma Unit, Hospital Universitario de Canarias, Tenerife, Spain.