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结直肠癌为常见恶性肿瘤。发病率在美国居恶性肿瘤的第二位,日本为恶性肿瘤病死率的第一位,中国居八大常见肿瘤之一。随着认识的深入,人们对预防呼声的
Colorectal cancer is a common malignancy. The incidence rate ranks second in the United States for malignant tumors, and Japan ranks first in the mortality rate of malignant tumors. China ranks as one of the eight most common tumors. With the deepening of understanding, people’s voice of prevention