Fig. 6From: CD63-positive extracellular vesicles are potential diagnostic biomarkers of pancreatic ductal adenocarcinomaEffect of surgical resection on the serum levels of EVs and CA19-9. The values of CD63+-EVs (a), CD41+-EVs (b), CD61+-EVs (c) and CA19-9 (d) before (PRE-OP) and after operation for 30–90 days (POST-OP) of patients with PDAC (n = 28 for (a), (b), (c), n = 19 for (d)). p-values obtained by Wilcoxon signed rank test are indicated in the figureBack to article page