The intensity of the bands, expressed as the ratio to the band of standard recombinant TF, was significantly higher in patients with hypereosinophilic disorders than in normal subjects, median (range) 1.77 (0.82–2.63) vs 0.49 (0.25–0.75) (p<0.0001) (Figure 3, panel A and B). Here, TF is linked to hypereosinophilic syndrome.