Flexible sigmoidoscopy and colonoscopy deeloped to help find and remoe precancerous growths 发明可弯曲乙状结肠镜和结肠镜以发现和切除癌前增生病变
2.
More importantly , our study proved the safety and sensitivity of colonoscopy over conventional screening tests like fecal occult blood test or sigmoidoscopy in chinese populations 研究的结果同时确定结肠内视镜比传统的普查方法如大便潜血化验、或乙状结肠镜检查更为灵敏，也安全准确，适用于华人结肠癌的普查方法。
