[1] S Giovanni Dio Hosp, Allergy Unit, Florence, Italy
[2] Rimini Hosp, Internal Med & Rheumatol Dept, Rimini, Italy
[3] St Anna Hosp, Allergy Unit, Como, Italy
[4] Internal Med Dept, Allergy Unit, Faenza, Italy
[5] Univ Pisa, Dept Biol, Pisa, Italy
[6] Univ Calgary, Dept Ecosyst & Publ Hlth, Vet Med, Calgary, AB, Canada
[7] Univ Bourgogne Franche Comte, Lab Chronoenvironm, Besancon, France
[8] Univ Genoa, DIMI, Allergy & Resp Dis Clin, Genoa, Italy