Fig. 2From: Clinical significance of the preoperative main pancreatic duct dilation and neutrophil-to-lymphocyte ratio in pancreatic neuroendocrine tumors (PNETs) of the head after curative resectionKaplan-Meier survival curves for the different PNET subgroups. High PD-NLR score was significantly correlated with shorter OS and DFS in subgroups with grade 1–2 (a and b) and tumor size > 2.5 cm (c and d)Back to article page