Fig. 2: The serum miRNA expression profiles in healthy controls differed from those in pancreatic cancer patients.

a Heatmap representing hierarchical unsupervised clustering analysis of the miRNA sequencing of healthy controls (blue) and pancreatic cancer patients (orange). b Principal component analysis (PCA) of the miRNA sequencing of healthy controls (blue) and pancreatic cancer patients (orange). cāe The PCA grouped by hospitals, clinics, and the NGS measurements. HC healthy control, PC pancreatic cancer.