Fig. 4From: CD63-positive extracellular vesicles are potential diagnostic biomarkers of pancreatic ductal adenocarcinomaComparison of the values of EVs and CA19-9 between early and late-stage PDAC. CA19-9 (a), CD63+-EVs (b), CD41+-EVs (c), and CD61+-EVs (d) were shown in early (I–II, n = 23) and late (III–IV, n = 16) clinical stage of patients with PDAC. p-values obtained by Wilcoxon–Mann–Whitney test are indicated in the figureBack to article page