Fig. 5From: A Phase I clinical trial of EUS-guided intratumoral injection of the oncolytic virus, HF10 for unresectable locally advanced pancreatic cancerEvaluation of CD4+ and CD8+ cells infiltration around the cancer tissue (HF-2-02). a Three different areas (circle) were evaluated. b, c High-power photomicrograph showed diffuse persistence of cancer cells (arrow), and infiltration of CD8+ cells was detected along by the cancer cellsBack to article page