1·Some epidemiological and animal studies have suggested that folic acid supplementation may prevent colorectal tumours.
一些流行病学和动物研究曾显示叶酸可预防结肠直肠肿瘤。
2·Colorectal Screening. Starting at age50, this test should be performed every1 ~ 10years, depending upon the test your doctor USES.
结肠直肠检查。50岁开始，每1 ~ 10年应做这项检验，视你的医生所用的检验方法而定。
3·Endoscopic resection of giant colorectal polyps is feasible and safe.
内镜下切除巨大结肠直肠息肉是可行的和安全的。
4·Objective: The feasibility and safety of endoscopic treatment of giant colorectal polyps was investigated.
探讨内镜下治疗巨大结肠直肠息肉的可行性和安全性。
5·Conclusions: Endoscopic resection of giant colorectal polyps is feasible and safe.
结论：内镜下切除巨大结肠直肠息肉是可行的和安全的。