Evidence from animal studies showed that experimental colonic tumors induced by DMH are of epithelial origin with a similar histology, morphology and anatomy to human colonic neoplasms.
动物实验表明二甲肼诱发的结肠癌在组织，形态及解剖结构上与人类的大肠肿瘤较为相似。
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Results and Conclusion: The animal model of IVRO was established successfully, which provided experimental foundation for biomechanics, histology and morphology studying of IVRO.