1 Department of Allergy, La Paz University Hospital, IdiPAZ, Madrid, Spain; CIBER of Respiratory Diseases, CIBERES, Madrid, Spain. Electronic address: javier.dominguez@idipaz.es.
2 Department of Allergy, La Paz University Hospital, IdiPAZ, Madrid, Spain.
3 Department of Allergy, La Paz University Hospital, IdiPAZ, Madrid, Spain; CIBER of Respiratory Diseases, CIBERES, Madrid, Spain.
4 CIBER of Respiratory Diseases, CIBERES, Madrid, Spain; Department of Pulmonology, La Paz University Hospital, IdiPAZ, Madrid, Spain.