Basic Study
Copyright ©The Author(s) 2019.
World J Gastroenterol. Apr 14, 2019; 25(14): 1684-1696
Published online Apr 14, 2019. doi: 10.3748/wjg.v25.i14.1684
Figure 1
Figure 1 Immunohistochemical staining for programmed death ligand 1 in human gastric neuroendocrine carcinomas. A: Representative case of negative programmed death ligand 1 (PD-L1) expression; B: Tumor-stromal interface enhanced expression of PD-L1; C: Membrane expression of PD-L1; D: Weak staining; E: Moderate staining; F: Strong staining. PD-L1: Programmed death ligand 1.