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Tumor-killing effect did not occur in HCC treated with either CHAL or TPZ alone. Gross morphology and histopathology examination of the liver and tumors in transient-CHAL–treated group (n = 2) (A) and TPZ-treated group (n = 2) (B), which were killed at day 21 after treatment, without detectable necrosis in the tumor regions (marked with dashed cycles). (Scale bars: 0.2 mm.)
