[1] Padua Gen Univ Hosp, Referral Ctr Food Allergy, Dept Pediat, Padua, Italy
[2] Addenbrookes Hosp, Cambridge, England
[3] Humboldt Univ, Childrens Hosp Charite, Dept Pediat Pneumol & Immunol, Berlin, Germany
[4] Univ Nova Lisboa, Fac Med Sci, Dept Immunol, CEDOC, Lisbon, Portugal
[5] Dona Estefania Hosp, Immunoallergy Dept, Lisbon, Portugal
[6] Gothenburg Univ, Gothenburg, Sweden
[7] Oslo Univ Hosp, Dept Pediat, Ulleval, Norway
[8] Oslo Univ Hosp, Fac Med, Ulleval, Norway
[9] Univ Milan, Dept Environm & Occupat Hlth, Hosp Luigi Sacco Unit, Milan, Italy
[10] Childrens Hosp La Fe, Valencia, Spain
[11] Hop Enfantes Allerogol & Pulmonol, Toulouse, France
[12] Turku Allergy Ctr, Turku, Finland
[13] Karolinska Inst, Inst Environm Med, S-10401 Stockholm, Sweden
[14] Carlo Cattaneo Univ, Fac Law, Varese, Italy