Figure 3: Tissues were stained by hematoxylin-eosin (HE) and anti-M2BP antibody (M2BP) and 1116NS19-9 antibody (CA19-9). Tissue samples from healthy patients (A, B) and pancreatic cancer patients (C, D). The region enclosed by a rectangle is magnified in (B, D). Scale bar shows: A and C = 20 μm, B and D = 5 μm.