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大肠癌是当代最严重的疾病之一，近年来，其发病率呈上升趋势。大肠癌的治疗，手术切除仍然是首要的选择，但术后由于存在隐蔽的残留灶和微转移灶，易引起复发和转移。有许多学者力图寻找对手术后大肠癌辅助化疗的方法，以降低患者的复发率和提高生存率，这些研究中的大多数因
Colorectal cancer is one of the most serious diseases in the world. In recent years, its incidence has been on the rise. The treatment of colorectal cancer, surgical resection is still the first choice, but because of the existence of hidden residual tumor and micrometastases, it is easy to cause recurrence and metastasis. There are many scholars who are trying to find ways to adjuvant chemotherapy for postoperative colorectal cancer to reduce the recurrence rate and improve the survival rate of patients. Most of these studies are due to