Laboratory investigations
The detection of sIgE to peanut, hazelnut, walnut and cashew and to their respective 2S albumins Ara h 2, Cor a 14, Jug r 1, Ana o 3 as well as to the 7S vicilin-like globulin Ara h 1, was performed by using the NOVEOSTM immunoanalyzer (Garden Grove, California, USA). Sensitization was defined as specific IgE ≥ 0.1 kU/l.