以下为句子列表：
英文: According to this study, severe dysplasia and some moderate dysplasia were precancerous lesions.
中文: 对141例采用内镜粘膜切除术，其中22例随诊满5年，其5年生存率为100％。
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英文: Both accines also appeared to preent abnormal, precancerous cell growths found in the cerix, he says.
中文: 他表示，两种疫苗似乎都能防止子宫颈内不正常、尚未成癌的细胞生长。
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英文: Doctors use seeral tools to screen for colon cancer and precancerous lesions, including blood tests and imaging technologies such as X-rays and CT scans (also known as irtualcolonoscopies).
中文: 医生运用几种措施筛查结肠癌以及癌前期病变，包括血液检测以及如x线和CT筛查（也称虚拟结肠镜）的影像学手段。
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英文: Flexible sigmoidoscopy and colonoscopy deeloped to help find and remoe precancerous growths.
中文: 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.
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英文: Flexible sigmoidoscopy and colonoscopy developed to help find and remove precancerous growths.
中文: 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.
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