[1] Ist Giannina Gaslini, Allergy Ctr, Genoa, Italy
[2] Univ Genoa, Dept Neurosci Rehabil Ophthalmol Genet Child & Ma, Genoa, Italy
[3] Ist Giannina Gaslini, Pediat Pulmonol & Resp Endoscopy, Genoa, Italy
[4] Univ Genoa, Hlth Sci Dept, Genoa, Italy
[5] Casa Cura Villa Montallegro, Allergy Clin, I-16132 Genoa, Italy