1. Allergy Service, Gregorio Marañón University Hospital, Gregorio Marañón Health Research Institute, Madrid, Spain
2. Pathology Department, Gregorio Marañón University Hospital, Gregorio Marañón Health Research Institute, Madrid, Spain
3. Internal Medicine Department, Gregorio Marañón University Hospital, Gregorio Marañón Health Research Institute, Madrid, Spain
4. Biomedical Research Network on Rare Diseases (CIBERER)-U761, Madrid, Spain