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Posttreatment PD-L1 expression pattern in our patients’ high grade serous ovarian carcinoma and in tumor infiltrating lymphocytes. A: Tumor cell with strong positive membranous staining of PD-L1; B: Tumor with artificial membranous and some cytoplasmatic staining of PD-L1 as well as some immune cells with PD-L1 expression; C: For comparison: an example of PD-L1 staining in immune cells.
