1. Allergy and Clinical Immunology Department; Institut de Recerca Pediàtrica Hospital Sant Joan de Déu; Esplugues de Llobregat Spain
2. Functional Unit of Clinical Immunology; Hospital Sant Joan de Déu-Hospital Clinic; Universitat de Barcelona; Barcelona Spain
3. Universidad Militar Nueva Granada; Bogotá Colombia
4. Department of Pediatric oncology; Institut de Recerca Pediàtrica Hospital Sant Joan de Déu; Esplugues de Llobregat Spain
5. Department of Pediatric Pneumology; Institut de Recerca Pediàtrica Hospital Sant Joan de Déu; Esplugues de Llobregat Spain
6. Department of Pathology; Hospital Sant Joan de Déu; Barcelona Spain
7. Immunology Department; Centre de Diagnòstic Biomèdic; Hospital Clínic de Barcelona; IDIBAPS; Universitat de Barcelona; Barcelona Spain