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(A, B) Representative photographs of abdominal metastatic nodes (arrows) in each treatment group. PBS (a), RRPH polymer (b), RRPHC/MCS (c), and RRPHC/hTRAIL (d). (C, D) Tumor weights and tumor nodules after treatment with different formulations. (E) IHC analyses of the expression of Ki-67 and TUNEL in tumor tissues of different treatment groups. **p = 0.0052, ***p = 0.0005.
