[1] IIS Fdn Jimenez Diaz, Dept Allergy, Madrid, Spain
[2] Hosp Cent Cruz Roja, Dept Allergy, Madrid, Spain
[3] Hosp 12 Octubre, Dept Allergy, Madrid, Spain
[4] Hosp Royo Villanova, Dept Allergy, Zaragoza, Spain
[5] Hosp Virgen de la Concha, Dept Allergy, Zamora, Spain
[6] ROXALL Espana, R&D Dept, Zamudio, Spain
[7] ROXALL Espana, R&D Dept, Bizkaia, Spain