[1] Univ Pavia, Dept Publ Hlth Forens & Expt Med, Specializat Sch Occupat Med, Pavia, Italy
[2] Otto von Guericke Univ, Inst Social Med & Hlth Econ, Magdeburg, Germany
[3] Tech Univ Munich, Sch Med, Dept Dermatol & Allergy Biederstein, Munich, Germany
[4] Univ Med, Dept Pediat, Pediat Epidemiol, Leipzig, Germany
[5] Odense Univ Hosp, ORCA Odense Res Ctr Anaphylaxis, Dept Dermatol, Odense, Denmark
[6] Odense Univ Hosp, ORCA Odense Res Ctr Anaphylaxis, Allergy Ctr, Odense, Denmark
[7] ASST Spedali Civili, Osped Bambini, Io & Asma Ctr, Brescia, Italy
[8] Hosp La Paz Inst Hlth Res IdIPAZ, Dept Allergy, Madrid, Spain
[9] CIBERES, CIBER Resp Dis, Madrid, Spain
[10] Univ Perugia, Occupat Med, Perugia, Italy
[11] Univ Toronto, Dept Med, Toronto, ON, Canada
[12] Univ Toronto, Dalla Lana Sch Publ Hlth, Toronto, ON, Canada
[13] Univ Hlth Network, Toronto Western Hosp, Resp Div, Toronto, ON, Canada
[14] Inst Ruhr Univ Bochum IPA, Insti Prevent & Occupat Med German Social Accid I, Bochum, Germany
[15] Nofer Inst Occupat Med, Dept Occupat Dis & Environm Hlth, Lodz, Poland