[1] Charite, Allergie Ctr Charite, Secretary Gen GA2 LEN, Dept Dermatol & Allergy, D-10117 Berlin, Germany
[2] Univ Southampton, Southampton, Hants, England
[3] Univ Manitoba, Dept Pediat & Child Hlth, Allergy & Clin Immunol Sect, Winnipeg, MB R3T 2N2, Canada
[4] Odense Univ Hosp, Dept Dermatol, DK-5000 Odense, Denmark
[5] Univ Ghent, Dept Otorhinolaryngol, B-9000 Ghent, Belgium
[6] Univ Hosp, Clin Malad Resp, Montpellier, France