Circulating exosomal miR-17-92 cluster serves as a novel noninvasive diagnostic marker for patients with gastric cancer

Figure 2 Expression levels of the exosomal miR-17-92 cluster members in the serum samples of patients with gastric cancer and healthy controls. A: Expression level of miR-17; B: Expression level of miR-18; C: Expression level of miR-19a; D: Expression level of miR-19b; E: Expression level of miR-20; F: Expression level of miR-92. ^aP < 0.05; ^bP < 0.01; GC: Gastric cancer.