ENPP3 and chronic myelogenous leukemia, BCR-ABL1 positive: As assessed by flow cytometry, CML basophils (n = 28 patients) expressed slightly higher levels of CD203c (SI levels) compared to blood basophils in healthy individuals (n = 20) (basophil CD203c: SI in CML: 29.41 ± 19.14 vs. SI in controls: 20.44 ± 13.45) (Figure 2A).