[1] UAM, Inst Invest Sanit Hosp Univ Fdn Jimenez Diaz, IIS FJD, Dept Immunol, Madrid, Spain
[2] CIBERES, CIBER Enfermedades Resp, Madrid, Spain
[3] UAM, IIS FJD, Hosp Univ Fdn Jimenez Diaz, Dept Allergy, Madrid, Spain
[4] UAM, IIS FJD, Epidemiol Unit, Madrid, Spain
[5] Hosp La Paz Inst Hlth Res IdiPAZ, Dept Allergy, Madrid, Spain
[6] Hosp Univ Son Espases IdISBa, Dept Resp Med, Palma De Mallorca, Spain