[1] CHU Montpellier, Hop Arnaud Villeneuve, Dept Resp Dis, Montpellier, France
[2] Odense Univ Hosp, Dept Dermatol, Allergy Ctr, DK-5000 Odense, Denmark
[3] Univ Genoa, Dept Internal Med, Allergy & Resp Dis Clin, I-16126 Genoa, Italy
[4] Univ Amsterdam, Acad Med Ctr, Dept Otorhinolaryngol, NL-1105 AZ Amsterdam, Netherlands
[5] McMaster Univ, Fac Hlth Sci, Dept Med, Hamilton, ON L8N 3Z5, Canada
[6] Med Univ Lodz, Fac Med, Dept Allergy & Clin Immunol, Lodz, Poland
[7] Hop St Marguerite, Pneumoallergol Serv, Marseille, France
[8] Hosp Clin Barcelona, ENT Dept, Rhinol Unit, Barcelona, Spain
[9] Univ Ghent, Univ Hosp, Dept Otorhinolaryngol, B-9000 Ghent, Belgium