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. 2017 Apr 12;10:2115–2126. doi: 10.2147/OTT.S130481

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© 2017 Zhao et al. This work is published and licensed by Dove Medical Press Limited

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Immunohistochemical analysis of PD-L1 expression in pancreatic cancer tissue and spontaneous liver metastases.

Notes: (A) Representative images of pancreatic tumor and spontaneous liver metastases. (B–C) Hematoxylin-eosin staining of pancreatic tumor tissue and spontaneous liver metastases at ×100 and ×400 magnification, respectively. (D) PD-L1 expression after injection with anti-PD-L1 antibody for 6 weeks in both pancreatic tumor tissue and spontaneous liver metastases at ×400 magnification.

Abbreviation: PD-L1, programmed death-ligand 1.